Blockchain Based Secure Firmware Update For IoT Devices — Complete Documentation & Simulation

Overview & System Context

Blockchain Based Secure Firmware Update For Iot Devices: Comprehensive Web-Sourced Technical Investigation Exhaustive Research Dossier · Pure Web-Scraped Content: ~9518 Words · Real Software Screenshots: 1 1. Executive Overview & Technical Background Computer security (also cybersecurity, digital security, or information technology (IT) security) is a subdiscipline within the field of information security. It focuses on protecting computer software, systems, and networks from threats that can lead to unauthorized information disclosure, theft, or damage to hardware, software, or data, as well as to the disruption or misdirection of the services they provide. The growing significance of computer security reflects the increasing dependence on computer systems, the Internet, and evolving wireless network standards. This reliance has expanded with the proliferation of smart devices, including smartphones, televisions, and other components of the Internet of things (IoT). As digital infrastructure becomes more embedded in everyday life, cybersecurity has emerged as a critical concern. The complexity of modern information systems—and the societal functions they underpin—has introduced new vulnerabilities. Systems that manage essential services, such as power grids, electoral processes, and finance, are particularly sensitive to security breaches. Estimates of global information security spending in 2026 range from US$244 billion to US$308 billion. Although many aspects of computer security involve digital security, such as electronic passwords and encryption, physical security measures, such as metal locks, are still used to prevent unauthorized tampering. IT security is not a perfect subset of information security and therefore does not completely align with the security convergence schema.

A vulnerability refers to a flaw in the structure, execution, functioning, or internal oversight of a computer or system that compromises its security. Most of the vulnerabilities that have been discovered are documented in the Common Vulnerabilities and Exposures (CVE) database. An exploitable vulnerability is one for which at least one working exploit exists. A threat is an action or event that potentially affects hardware, software, or data negatively. A threat actor is a person or entity that performs a threat (the title hacker is more commonly used in popular media), likely through exploiting some vulnerability.

Vulnerabilities can be researched, reverse-engineered, hunted, or exploited using automated tools or customized scripts. Various people or parties are vulnerable to cyberattacks; however, different groups are likely to experience different types of attacks more than others. In April 2023, the United Kingdom Department for Science, Innovation & Technology released a report on cyberattacks over the previous 12 months. They surveyed 2,263 UK businesses, 1,174 UK registered charities, and 554 education institutions. The research found that "32% of businesses and 24% of charities overall recall any breaches or attacks from the last 12 months." These figures were much higher for "medium businesses (59%), large businesses (69%), and high-income charities with £500,000 or more in annual income (56%)." Yet, although medium or large businesses are more often the target, small and midsize businesses (SMBs) have become increasingly vulnerable as they often "do not have advanced tools to defend the business" . SMBs are most likely to be affected by malware, ransomware, phishing, man-in-the-middle attacks, and Denial-of Service (DoS) Attacks. Domestic internet users are most likely to be affected by untargeted cyberattacks. These are where attackers indiscriminately target as many devices, services, or users as possible.

They do this using techniques that take advantage of the openness of the Internet. These strategies mostly include phishing, ransomware, water holing and scanning. To secure a computer system, it is important to understand the attacks that can be made against it, and these threats can typically be classified into one of the following categories: A direct-access attack is when an unauthorized user (an attacker) gains physical access to a computer, typically to copy data from it or steal information. Attackers may also compromise security by making operating system modifications, installing software worms, keyloggers, covert listening devices or using wireless microphones. Even when the system is protected by standard security measures, these may be bypassed by booting another operating system or tool from a CD-ROM or other bootable media. Disk encryption and the Trusted Platform Module standard are designed to prevent these attacks. Direct service attackers are related in concept to direct memory attacks which allow an attacker to gain direct access to a computer's memory. The attacks "take advantage of a feature of modern computers that allows certain devices, such as external hard drives, graphics cards, or network cards, to access the computer's memory directly." Malicious software (malware) is any software code or computer program "intentionally written to harm a computer system or its users." Once present on a computer, it can leak sensitive details such as personal information, business information and passwords, can give control of the system to the attacker, and can corrupt or delete data permanently.

Figure 1: Video Demonstration & Practical Interface Overview IP address spoofing is where the attacker hijacks routing protocols to reroute the targets traffic to a vulnerable network node for traffic interception or injection. Message spoofing (via email, SMS or OTT messaging) is where the attacker spoofs the identity or carrier service while the target is using messaging protocols like email, SMS or OTT (IP-based) messaging apps.

The attacker can then monitor conversations, launch social attacks or trigger zero-day-vulnerabilities to allow for further attacks. WiFi SSID spoofing is where the attacker simulates a Wi-Fi base station SSID to capture and modify internet traffic and transactions. The attacker can also use local network addressing and reduced network defenses to penetrate the target's firewall by breaching known vulnerabilities. Sometimes known as a Pineapple attack thanks to a popular device. See also Malicious association. DNS spoofing is where attackers hijack domain name assignments to redirect traffic to systems under the attackers' control, in order to surveil traffic or launch other attacks. SSL hijacking, typically coupled with another media-level MITM attack, is where the attacker spoofs the SSL authentication and encryption protocol by way of Certificate Authority injection in order to decrypt, surveil and modify traffic. See also TLS interception Phishing is the attempt to acquire sensitive information such as usernames, passwords, and credit card details directly from users by deceiving the users. Phishing is typically carried out by email spoofing, instant messaging, text message, or on a phone call. They often direct users to enter details at a fake website whose look and feel are almost identical to the legitimate one. The fake website often asks for personal information, such as login details and passwords. This information can then be used to gain access to the individual's real account on the real website. Preying on a victim's trust, phishing can be classified as a form of social engineering. Attackers can use creative ways to gain access to real accounts. A common scam is for attackers to send fake electronic invoices to individuals showing that they recently purchased music, apps, or others, and instructing them to click on a link if the purchases were not authorized. A more strategic type of phishing is spear-phishing which leverages personal or organization-specific details to make the attacker appear like a trusted source. Spear-phishing attacks target specific individuals, rather than the broad net cast by phishing attempts.

Horizontal escalation (or account takeover) is where an attacker gains access to a normal user account that has relatively low-level privileges. This may be through stealing the user's username and password. Once they have access, they have gained a foothold, and using this foothold the attacker then may move around the network of users at this same lower level, gaining access to information of this similar privilege. Vertical escalation, however, targets people higher up in a company and often with more administrative power, such as an employee in IT with a higher privilege. Using this privileged account will then enable the attacker to invade other accounts.

Any computational system affects its environment in some form. This effect it has on its environment can range from electromagnetic radiation, to residual effect on RAM cells which as a consequence make a cold boot attack possible, to hardware implementation faults that allow for access or guessing of other values that normally should be inaccessible. In Side-channel attack scenarios, the attacker would gather such information about a system or network to guess its internal state and as a result access the information which is assumed by the victim to be secure. The target information in a side channel can be challenging to detect due to its low amplitude when combined with other signals.

Spoofing is an act of pretending to be a valid entity through the falsification of data (such as an IP address or username), in order to gain access to information or resources that one is otherwise unauthorized to obtain. Spoofing is closely related to phishing. There are several types of spoofing, including: Email spoofing is where an attacker forges the sending (From, or source) address of an email. IP address spoofing, where an attacker alters the source IP address in a network packet to hide their identity or impersonate another computing system.

MAC spoofing, where an attacker modifies the Media Access Control (MAC) address of their network interface controller to obscure their identity, or to pose as another. Biometric spoofing, where an attacker produces a fake biometric sample to pose as another user. Address Resolution Protocol (ARP) spoofing, where an attacker sends spoofed address resolution protocol onto a local area network to associate their Media Access Control address with a different host's IP address. This causes data to be sent to the attacker rather than the intended host.

Pre-evaluation: To identify the awareness of information security within employees and to analyze the current security policies. Strategic planning: To develop an awareness program, clear targets need to be set. Assembling a team of skilled professionals is helpful to achieve it. Operative planning: Security culture can be established based on internal communication, management buy-in, security awareness and a training program. Implementation: Four stages should be used to implement the information security culture. They are: Commitment of the management Communication with organizational members Courses for all organizational members Commitment of the employees Post-evaluation: To assess the success of the planning and implementation, and to identify unresolved areas of concern.

Security by design, or alternatively secure by design, means that the software has been designed from the ground up to be secure. In this case, security is considered a main feature. The UK government's National Cyber Security Centre separates secure cyber design principles into five sections: 2. System Architecture & Core Working Principles Before a secure system is created or updated, companies should ensure they understand the fundamentals and the context around the system they are trying to create and identify any weaknesses in the system. Companies should design and centre their security around techniques and defences which make attacking their data or systems inherently more challenging for attackers. Companies should ensure that their core services that rely on technology are protected so that the systems are essentially never down. Although systems can be created which are safe against a multitude of attacks, that does not mean that attacks will not be attempted. Despite one's security, all companies' systems should aim to be able to detect and spot attacks as soon as they occur to ensure the most effective response to them. Companies should create secure systems designed so that any attack that is successful has minimal severity. These design principles of security by design can include some of the following techniques: The principle of least privilege, where each part of the system has only the privileges that are needed for its function. That way, even if an attacker gains access to that part, they only have limited access to the whole system. Automated theorem proving to prove the correctness of crucial software subsystems. Code reviews and unit testing, approaches to make modules more secure where formal correctness proofs are not possible. Defense in depth, where the design is such that more than one subsystem needs to be violated to compromise the integrity of the system and the information it holds. Default secure settings, and design to fail secure rather than fail insecure (see fail-safe for the equivalent in safety engineering). Ideally, a secure system should require a deliberate, conscious, knowledgeable and free decision on the part of legitimate authorities in order to make it insecure. Audit trails track system activity so that when a security breach occurs, the mechanism and extent of the breach can be determined. Storing audit trails remotely, where they can only be appended to, can keep intruders from covering their tracks. Full disclosure of all vulnerabilities, to ensure that the window of vulnerability is kept as short as possible when bugs are discovered.

the relationship of different components and how they depend on each other. determination of controls based on risk assessment, good practices, finances, and legal matters. the standardization of controls. Practicing security architecture provides the right foundation to systematically address business, IT and security concerns in an organization. Limiting the access of individuals using user account access controls and using cryptography can protect systems files and data, respectively. Firewalls are by far the most common prevention systems from a network security perspective as they can (if properly configured) shield access to internal network services and block certain kinds of attacks through packet filtering.

Firewalls can be both hardware and software-based. Firewalls monitor and control incoming and outgoing traffic of a computer network and establish a barrier between a trusted network and an untrusted network. Intrusion Detection System (IDS) products are designed to detect network attacks in-progress and assist in post-attack forensics, while audit trails and logs serve a similar function for individual systems. Response is necessarily defined by the assessed security requirements of an individual system and may cover the range from simple upgrade of protections to notification of legal authorities, counter-attacks, and the like. In some special cases, the complete destruction of the compromised system is favored, as it may happen that not all the compromised resources are detected. Cybersecurity awareness training to cope with cyber threats and attacks. Forward web proxy solutions can prevent the client to visit malicious web pages and inspect the content before downloading to the client machines. Today, computer security consists mainly of preventive measures, like firewalls or an exit procedure. A firewall can be defined as a way of filtering network data between a host or a network and another network, such as the Internet. They can be implemented as software running on the machine, hooking into the network stack (or, in the case of most UNIX-based operating systems such as Linux, built into the operating system kernel) to provide real-time filtering and blocking. Another implementation is a so-called physical firewall, which consists of a separate machine filtering network traffic. Firewalls are common amongst machines that are permanently connected to the Internet. Some organizations are turning to big data platforms, such as Apache Hadoop, to extend data accessibility and machine learning to detect advanced persistent threats. In order to ensure adequate security, the confidentiality, integrity and availability of a network, known as the CIA triad, must be protected and is considered the foundation of information security. To achieve those objectives, administrative, physical and technical security measures should be employed. The amount of security afforded to an asset can only be determined when its value is known.

Vulnerability management is the cycle of identifying, fixing or mitigating vulnerabilities, especially in software and firmware. Vulnerability management is integral to computer security and network security. Vulnerabilities can be discovered with a vulnerability scanner, which analyzes a computer system in search of known vulnerabilities, such as open ports, insecure software configuration, and susceptibility to malware. In order for these tools to be effective, they must be kept up to date with every new update the vendor releases. Typically, these updates will scan for the new vulnerabilities that were introduced recently. Beyond vulnerability scanning, many organizations contract outside security auditors to run regular penetration tests against their systems to identify vulnerabilities. In some sectors, this is a contractual requirement.

Hardware-based or assisted computer security also offers an alternative to software-only computer security. Using devices and methods such as dongles, trusted platform modules, intrusion-aware cases, drive locks, disabling USB ports, and mobile-enabled access may be considered more secure due to the physical access (or sophisticated backdoor access) required in order to be compromised. Each of these is covered in more detail below.

USB dongles are typically used in software licensing schemes to unlock software capabilities, but they can also be seen as a way to prevent unauthorized access to a computer or other device's software. The dongle, or key, essentially creates a secure encrypted tunnel between the software application and the key. The principle is that an encryption scheme on the dongle, such as Advanced Encryption Standard (AES) provides a stronger measure of security since it is harder to hack and replicate the dongle than to simply copy the native software to another machine and use it. Another security application for dongles is to use them for accessing web-based content such as cloud software or Virtual Private Networks (VPNs). In addition, a USB dongle can be configured to lock or unlock a computer. Trusted platform modules (TPMs) secure devices by integrating cryptographic capabilities onto access devices, through the use of microprocessors, or so-called computers-on-a-chip. TPMs used in conjunction with server-side software offer a way to detect and authenticate hardware devices, preventing unauthorized network and data access. Computer case intrusion detection refers to a device, typically a push-button switch, which detects when a computer case is opened. The firmware or BIOS is programmed to show an alert to the operator when the computer is booted up the next time. Drive locks are essentially software tools to encrypt hard drives, making them inaccessible to thieves. Tools exist specifically for encrypting external drives as well. Disabling USB ports is a security option for preventing unauthorized and malicious access to an otherwise secure computer. Infected USB dongles connected to a network from a computer inside the firewall are considered by the magazine Network World as the most common hardware threat facing computer networks. Disconnecting or disabling peripheral devices (like camera, GPS, removable storage, etc.), that are not in use. Mobile-enabled access devices are growing in popularity due to the ubiquitous nature of cell phones.

Built-in capabilities such as Bluetooth, the newer Bluetooth low-energy (LE), near-field communication (NFC) on non-iOS devices and biometric validation such as thumbprint readers, as well as QR code reader software designed for mobile devices, offer new, secure ways for mobile phones to connect to access control systems. These control systems provide computer security and can also be used for controlling access to secure buildings. IOMMUs allow for hardware-based sandboxing of components in mobile and desktop computers by utilizing direct memory access protections. Physical Unclonable Functions (PUFs) can be used as a digital fingerprint or a unique identifier to integrated circuits and hardware, providing users the ability to secure the hardware supply chains going into their systems.

One use of the term computer security refers to technology that is used to implement secure operating systems. Using secure operating systems is a good way of ensuring computer security. These are systems that have achieved certification from an external security-auditing organization, the most popular evaluations are Common Criteria (CC). In software engineering, secure coding aims to guard against the accidental introduction of security vulnerabilities. It is also possible to create software designed from the ground up to be secure. Such systems are secure by design. Beyond this, formal verification aims to prove the correctness of the algorithms underlying a system; important for cryptographic protocols for example.

Within computer systems, two of the main security models capable of enforcing privilege separation are access control lists (ACLs) and role-based access control (RBAC). An access-control list (ACL), with respect to a computer file system, is a list of permissions associated with an object. An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Role-based access control is an approach to restricting system access to authorized users, used by the majority of enterprises with more than 500 employees, and can implement mandatory access control (MAC) or discretionary access control (DAC). A further approach, capability-based security has been mostly restricted to research operating systems. Capabilities can, however, also be implemented at the language level, leading to a style of programming that is essentially a refinement of standard object-oriented design. An open-source project in the area is the E language.

Identifying attackers is difficult, as they may operate through proxies, temporary anonymous dial-up accounts, wireless connections, and other anonymizing procedures which make back-tracing difficult – and are often located in another jurisdiction. If they successfully breach security, they have also often gained enough administrative access to enable them to delete logs to cover their tracks. The sheer number of attempted attacks, often by automated vulnerability scanners and computer worms, is so large that organizations cannot spend time pursuing each. Law enforcement officers often lack the skills, interest or budget to pursue attackers. Furthermore, identifying attackers across a network may necessitate collecting logs from multiple locations within the network and across various countries, a process that can be both difficult and time-consuming. Where an attack succeeds and a breach occurs, many jurisdictions now have in place mandatory security breach notification laws.

Vehicles are increasingly computerized, with engine timing, cruise control, anti-lock brakes, seat belt tensioners, door locks, airbags and advanced driver-assistance systems on many models. Additionally, connected cars may use WiFi and Bluetooth to communicate with onboard consumer devices and the cell phone network. Self-driving cars are expected to be even more complex. All of these systems carry some security risks, and such issues have gained wide attention. Simple examples of risk include a malicious compact disc being used as an attack vector, and the car's onboard microphones being used for eavesdropping. However, if access is gained to a car's internal controller area network, the danger is much greater – and in a widely publicized 2015 test, hackers remotely carjacked a vehicle from 10 miles away and drove it into a ditch. Manufacturers are reacting in numerous ways, with Tesla in 2016 pushing out some security fixes over the air into its cars' computer systems. In the area of autonomous vehicles, in September 2016 the United States Department of Transportation announced some initial safety standards, and called for states to come up with uniform policies. Additionally, e-Drivers' licenses are being developed using the same technology. For example, Mexico's licensing authority (ICV) has used a smart card platform to issue the first e-Drivers' licenses to the city of Monterrey, in the state of Nuevo León.

3. Software Implementation, Frameworks & Protocols Medical devices have either been successfully attacked or had potentially deadly vulnerabilities demonstrated, including both in-hospital diagnostic equipment and implanted devices including pacemakers and insulin pumps. There are many reports of hospitals and hospital organizations getting hacked, including ransomware attacks, Windows XP exploits, viruses, and data breaches of sensitive data stored on hospital servers. On 28 December 2016 the US Food and Drug Administration released its recommendations for how medical device manufacturers should maintain the security of Internet-connected devices – but no structure for enforcement.

Preparation: Preparing stakeholders on the procedures for handling computer security incidents or compromises Detection and analysis: Identifying and investigating suspicious activity to confirm a security incident, prioritizing the response based on impact and coordinating notification of the incident Containment, eradication and recovery: Isolating affected systems to prevent escalation and limit impact, pinpointing the genesis of the incident, removing malware, affected systems and bad actors from the environment and restoring systems and data when a threat no longer remains Post incident activity: Post mortem analysis of the incident, its root cause and the organization's response with the intent of improving the incident response plan and future response efforts.

Some illustrative examples of different types of computer security breaches are given below. In 1988, 60,000 computers were connected to the Internet, and most were mainframes, minicomputers and professional workstations. On 2 November 1988, many started to slow down, because they were running a malicious code that demanded processor time and that spread itself to other computers – the first internet computer worm. The software was traced back to 23-year-old Cornell University graduate student Robert Tappan Morris who said "he wanted to count how many machines were connected to the Internet".

In early 2013, documents provided by Edward Snowden were published by The Washington Post and The Guardian exposing the massive scale of NSA global surveillance. There were also indications that the NSA may have inserted a backdoor in a NIST standard for encryption. This standard was later withdrawn due to widespread criticism. The NSA additionally were revealed to have tapped the links between Google's data centers.

In July 2015, a hacker group known as The Impact Team successfully breached the extramarital relationship website Ashley Madison, created by Avid Life Media. The group claimed that they had taken not only company data but user data as well. After the breach, The Impact Team dumped emails from the company's CEO, to prove their point, and threatened to dump customer data unless the website was taken down permanently. When Avid Life Media did not take the site offline the group released two more compressed files, one 9.7GB and the second 20GB. After the second data dump, Avid Life Media CEO Noel Biderman resigned; but the website remained to function.

In June 2021, the cyberattack took down the largest fuel pipeline in the U.S. and led to shortages across the East Coast. The Forum of Incident Response and Security Teams (FIRST) is the global association of CSIRTs. The US-CERT, AT&T, Apple, Cisco, McAfee, Microsoft are all members of this international team. The Council of Europe helps protect societies worldwide from the threat of cybercrime through the Convention on Cybercrime. The purpose of the Messaging Anti-Abuse Working Group (MAAWG) is to bring the messaging industry together to work collaboratively and to successfully address the various forms of messaging abuse, such as spam, viruses, denial-of-service attacks and other messaging exploitations.

France Telecom, Facebook, AT&T, Apple, Cisco, Sprint are some of the members of the MAAWG. ENISA : The European Network and Information Security Agency (ENISA) is an agency of the European Union with the objective to improve network and information security in the European Union. US-CERT: part of the National Cyber Security Division of the United States Department of Homeland Security. CERT/CC: created by the Defense Advanced Research Projects Agency (DARPA) and run by the Software Engineering Institute (SEI). In the context of U.S. nuclear power plants, the U.S. Nuclear Regulatory Commission (NRC) outlines cyber security requirements under 10 CFR Part 73, specifically in 10 CFR 73.54. The Nuclear Energy Institute's NEI 08-09 document, Cyber Security Plan for Nuclear Power Reactors, outlines a comprehensive framework for cybersecurity in the nuclear power industry.

There is growing concern that cyberspace will become the next theater of warfare. As Mark Clayton from The Christian Science Monitor wrote in a 2015 article titled "The New Cyber Arms Race": In the future, wars will not just be fought by soldiers with guns or with planes that drop bombs. They will also be fought with the click of a mouse a half a world away that unleashes carefully weaponized computer programs that disrupt or destroy critical industries like utilities, transportation, communications, and energy. Such attacks could also disable military networks that control the movement of troops, the path of jet fighters, the command and control of warships. This has led to new terms such as cyberwarfare and cyberterrorism. The United States Cyber Command was created in 2009 and many other countries have similar forces. There are a few critics that question whether cyber security is as significant a threat as it is made out to be.

Security analyst Analyzes and assesses vulnerabilities in the infrastructure (software, hardware, networks), investigates using available tools and countermeasures to remedy the detected vulnerabilities and recommends solutions and best practices. Analyzes and assesses damage to the data/infrastructure as a result of security incidents, examines available recovery tools and processes, and recommends solutions. Tests for compliance with security policies and procedures. May assist in the creation, implementation, or management of security solutions. Security engineer Performs security monitoring, security and data/logs analysis, and forensic analysis, to detect security incidents, and mount the incident response. Investigates and utilizes new technologies and processes to enhance security capabilities and implement improvements. May also review code or perform other security engineering methodologies. Security architect Designs a security system or major components of a security system, and may head a security design team building a new security system. Chief Information Security Officer (CISO) A high-level management position responsible for the entire information security division/staff. The position may include hands-on technical work. Chief Security Officer (CSO) A high-level management position responsible for the entire security division/staff. A newer position is now deemed needed as security risks grow. Data Protection Officer (DPO) A DPO is tasked with monitoring compliance with data protection laws (such as GDPR), data protection policies, awareness-raising, training, and audits. Security consultant/specialist/intelligence Broad titles that encompass any one or all of the other roles or titles tasked with protecting computers, networks, software, data or information systems against viruses, worms, spyware, malware, intrusion detection, unauthorized access, denial-of-service attacks, and an ever-increasing list of attacks by hackers acting as individuals or as part of organized crime or foreign governments. Student programs are also available for people interested in beginning a career in cyber security. Meanwhile, an alternative option for information security professionals of varied experience levels to keep studying is online security training, including webcasts. A wide range of courses are also available. In the United Kingdom, a nationwide set of cyber security forums, known as the U.K Cyber Security Forum, were established supported by the Government's cyber security strategy in order to encourage start-ups and innovation and to address the skills gap identified by the U.K Government. In Singapore, the Cyber Security Agency has issued a Singapore Operational Technology (OT) Cybersecurity Competency Framework (OTCCF). The framework defines emerging cybersecurity roles in Operational Technology. The OTCCF was endorsed by the Infocomm Media Development Authority (IMDA). It outlines the different OT cybersecurity job positions as well as the technical skills and core competencies necessary. It also depicts the many career paths available, including vertical and lateral advancement opportunities.

4. Practical Deployment, Analysis & Case Studies Access authorization restricts access to a computer to a group of users through the use of authentication systems. These systems can protect either the whole computer, such as through an interactive login screen, or individual services, such as a FTP server. There are many methods for identifying and authenticating users, such as passwords, identification cards, smart cards, and biometric systems. Anti-virus software consists of computer programs that attempt to identify, thwart, and eliminate computer viruses and other malicious software (malware). Applications are executable code, so general corporate practice is to restrict or block users the power to install them; to install them only when there is a demonstrated need (e.g. software needed to perform assignments); to install only those which are known to be reputable (preferably with access to the computer code used to create the application), and to reduce the attack surface by installing as few as possible. They are typically run with least privilege, with a robust process in place to identify, test and install any released security patches or updates for them. For example, programs can be installed into an individual user's account, which limits the program's potential access, as well as being a means control which users have specific exceptions to policy. In Linux, FreeBSD, OpenBSD, and other Unix-like operating systems there is an option to further restrict an application using chroot or other means of restricting the application to its own 'sandbox'. For example. Linux provides namespaces, and Cgroups to further restrict the access of an application to system resources. Generalized security frameworks such as SELinux or AppArmor help administrators control access. Java and other languages which compile to Java byte code and run in the Java virtual machine can have their access to other applications controlled at the virtual machine level. Some software can be run in software containers which can even provide their own set of system libraries, limiting the software's, or anyone controlling it, access to the server's versions of the libraries. Authentication techniques can be used to ensure that communication end-points are who they say they are. Automated theorem proving and other verification tools can be used to enable critical algorithms and code used in secure systems to be mathematically proven to meet their specifications. Backups are one or more copies kept of important computer files. Typically, multiple copies will be kept at different locations so that if a copy is stolen or damaged, other copies will still exist. Capability and access control list techniques can be used to ensure privilege separation and mandatory access control. Capabilities vs. ACLs discusses their use. Chain of trust techniques can be used to attempt to ensure that all software loaded has been certified as authentic by the system's designers. Confidentiality is the nondisclosure of information except to another authorized person. Cryptographic techniques can be used to defend data in transit between systems, reducing the probability that the data exchange between systems can be intercepted or modified.

Cyber attribution, is an attribution of cybercrime, i.e., finding who perpetrated a cyberattack. Cyberwarfare is an Internet-based conflict that involves politically motivated attacks on information and information systems. Such attacks can, for example, disable official websites and networks, disrupt or disable essential services, steal or alter classified data, and cripple financial systems. Data integrity is the accuracy and consistency of stored data, indicated by an absence of any alteration in data between two updates of a data record.

Encryption is used to protect the confidentiality of a message. Cryptographically secure ciphers are designed to make any practical attempt of breaking them infeasible. Symmetric-key ciphers are suitable for bulk encryption using shared keys, and public-key encryption using digital certificates can provide a practical solution for the problem of securely communicating when no key is shared in advance. Endpoint security software aids networks in preventing malware infection and data theft at network entry points made vulnerable by the prevalence of potentially infected devices such as laptops, mobile devices, and USB drives. Firewalls serve as a gatekeeper system between networks, allowing only traffic that matches defined rules. They often include detailed logging, and may include intrusion detection and intrusion prevention features. They are near-universal between company local area networks and the Internet, but can also be used internally to impose traffic rules between networks if network segmentation is configured. A hacker is someone who seeks to breach defenses and exploit weaknesses in a computer system or network. Honey pots are computers that are intentionally left vulnerable to attack by crackers. They can be used to catch crackers and to identify their techniques. Intrusion-detection systems are devices or software applications that monitor networks or systems for malicious activity or policy violations. A microkernel is an approach to operating system design which has only the near-minimum amount of code running at the most privileged level – and runs other elements of the operating system such as device drivers, protocol stacks and file systems, in the safer, less privileged user space. Pinging. The standard ping application can be used to test if an IP address is in use. If it is, attackers may then try a port scan to detect which services are exposed. A port scan is used to probe an IP address for open ports to identify accessible network services and applications. A key logger is spyware that silently captures and stores each keystroke that a user types on the computer's keyboard. Social engineering is the use of deception to manipulate individuals to breach security. Logic bombs is a type of malware added to a legitimate program that lies dormant until it is triggered by a specific event. A unikernel is a computer program that runs on a minimalistic operating system where a single application is allowed to run (as opposed to a general purpose operating system where many applications can run at the same time). This approach to minimizing the attack surface is adopted mostly in cloud environments where software is deployed in virtual machines. Zero trust security means that no one is trusted by default from inside or outside the network, and verification is required from everyone trying to gain access to resources on the network.

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Shams, Fereidoon (2011). "Enterprise information security, a review of architectures and frameworks from interoperability Singer, P. W.; Friedman, Allan (2014). Cybersecurity and Cyberwar: What Everyone Needs to Know. Oxford University Press. Infrastructure Security Agency CISA. (n.d.). Archived from the original on 25 April 2024. Retrieved 24 April 2024. Sztyber-Betley, A., Syfert, M., KoIcielny, J. M., & Górecka, Z. (2023). Controller Cyber-Attack Detection and Isolation †: Kaspersky Lab (; Russian: IIIIIIIIIII IIIIIIIIIII, romanized: Laboratoriya Kasperskogo) is a Russian multinational cybersecurity and anti-virus provider company headquartered in Moscow, Russia. It was founded in 1997 by Eugene Kaspersky, Natalya Kaspersky and Alexey De-Monderik. Kaspersky Lab develops and sells antivirus, endpoint security, SIEM, XDR, and other cybersecurity products and services. The Kaspersky Global Research and Analysis Team (GReAT) has led the discovery of sophisticated espionage platforms conducted by nations, such as Equation Group and the Stuxnet worm. Their research has uncovered large-scale and highly technical cyber espionage attempts. Kaspersky also publishes the annual Global IT Security Risks Survey. Kaspersky expanded abroad from 2005 to 2010 and grew to $822 million in annual revenues by 2024. In 2010, Kaspersky Lab ranked fourth in the global ranking of antivirus vendors by revenue. It was the first Russian company to be included into the rating of the world's leading software companies, called the Software Top 100 (79th on the list, as of June 29, 2012). In 2016, Kaspersky's research hubs analyzed more than 350,000 malware samples per day. In 2016, the software had about 400 million users and was one the largest market-share of cybersecurity software vendors in Europe. The US government has alleged that Kaspersky has engaged with the Russian Federal Security Service (FSB)—ties which the company has actively denied. In 2017, the Trump administration issued a ban of Kaspersky software on federal civilian and military computers. In response to these and other allegations, Kaspersky began to solicit independent reviews and verification of its source code, and relocated core infrastructure and customer data from Russia to Switzerland. Multiple countries have banned or restricted their government agencies from using Kaspersky products, including Lithuania, the Netherlands, and the United States. As of 2025, Kaspersky has over 30 offices in Europe, Middle East, Africa, Asia, and Latin America, and customers in over 200 countries.

Kaspersky Lab develops and markets antivirus, internet security, password management, endpoint security, and other cybersecurity products and services. It is the fourth or fifth largest endpoint security vendor and the third largest consumer IT security software company. It is the sixth largest overall IT security company. Its revenues are about 15 percent from Russian companies domestically, one-third from European organizations and one-fourth from US organizations. The software has about 400 million users in all. Kaspersky's consumer software include the Antivirus, Internet Security and Total Security products. The Antivirus software includes malware protection, monitors the PC for suspicious program behavior, and warns users about potentially dangerous websites. The Internet Security software adds privacy features, parental controls, anti-phishing tools. Total Security adds parental controls, adult website filters, diagnostic tools, a Password Manager application, and other features. Since 2023, the new lineup was introduced, with Kaspersky Basic, Plus and Premium replacing Antivirus, Internet Security and Total Security. Kaspersky's software is available for Macs, PCs, Android, iOS, Windows Mobile, BlackBerry and Symbian. For businesses, the company has developed Kaspersky Industrial CyberSecurity for OT environments, and Kaspersky Hybrid Cloud Security for container infrastructures. Detection and response solutions include Kaspersky Next XDR Expert, Kaspersky Next EDR Optimum, and Kaspersky SIEM for centralized security monitoring.

The company markets the Kaspersky Endpoint Security for Business suite. It includes a centralized user interface and management application called the Kaspersky Security Center. The cybersecurity software itself is called the Kaspersky Security Network. The business suite also has quarantine, reporting, and other features. Its software product for businesses with 25 staff or less is called Kaspersky Small Office Security (KSOS). Within the suite are products specifically for virtualization security, mobile security, and fraud protection among others. Kaspersky also develops a free tool that helps businesses gain access to Windows devices that are infected by ransomware. In 2017, KasperskyOS, a secure operating system, was released, and in 2021, Kaspersky IoT Secure Gateway 100 for IoT was introduced based on it. Among cloud solutions, Kaspersky Hybrid Cloud Security protects cloud infrastructures, and Kaspersky SD-WAN ensures secure corporate networks.

KasperskyOS is a proprietary microkernel operating system built from scratch using secure-by-design principles. It's developed by Kaspersky for embedded and industrial devices with heightened cybersecurity demands. It features minimal trusted kernel, strict isolation of components in user space, default-deny policy enforcement and formal, policy-based control via the Kaspersky Security System. The aim is to create “Cyber Immune” systems that keep critical functions operating even if some parts of the system are attacked via unknown vulnerabilities. Key use cases are network equipment, industrial control/IoT gateways, smart cars, smart city and transport infrastructure, and other critical-infrastructure uses. KasperskyOS is distributed both as a platform and inside finished appliances such as the Kaspersky IoT Secure Gateway (KISG 100/1000), while early deployments also appeared in Kraftway routing/switching gear. There is a community edition for prototyping and development.

In 2010, Kaspersky Lab worked with Microsoft to counteract the Stuxnet worm, which had infected 14 industrial locations in Iran using four zero-day vulnerabilities in Microsoft Windows. According to IEEE Spectrum, the circumstances "strongly suggest" the worm was developed by the United States and Israel to damage centrifuges in Iran's nuclear-enrichment program. It was the first discovery of a major government-sponsored cyber-attack.

In May 2012, Kaspersky Lab identified the malware Flame, which a researcher described as potentially "the most sophisticated cyber weapon yet unleashed". According to the company, the malware had infected an estimated 1,000 to 5,000 machines worldwide when asked by the United Nations International Telecommunication Union to investigate reports of a virus affecting Iranian Oil Ministry computers. As Kaspersky Lab investigated, it discovered an MD5 hash and filename that appeared only on customer machines from Middle Eastern nations. After discovering more pieces, researchers dubbed the program "Flame" after the name of one of its modules. Flame was an earlier variant of Stuxnet. Kaspersky never verified the source of the software, but it is suspected to have been developed by the National Security Agency (NSA) to transmit keystrokes, Skype calls and other data. Kaspersky created algorithms to find similar malware and found Gauss that July, which collected and transmitted data from devices infected by bluetooth or USB drives.

In January 2013, Kaspersky discovered the Red October malware, which had been used for widespread cyber-espionage for five years. It targeted political targets like embassies, nuclear sites, mostly in Europe, Switzerland and North America. The malware was likely written by Russian-speaking hackers and the exploits by Chinese hackers. That June, Kaspersky discovered NetTraveler, which it said was obtaining data on emerging technology from government targets and oil companies.

Kaspersky did not identify who was behind it, but it was similar to other cyber-espionage coming from Beijing, China. Later that same year, Kaspersky discovered a hacker group it called Icefog after investigating a cybersecurity attack on a Japanese television company. Kaspersky said the hacker group, possibly from China, was unique in that they targeted specific files they seemed to know about before planting malware to extract them.

In November 2014, Symantec and Kaspersky Lab first reported on a malware program called Regin. According to Kaspersky, Regin is similar to QWERTY, a malware program discovered the next year. Regin was used to take remote control of a computer and is believed to have originated from the Five Eyes alliance. That same month Kaspersky reported on the Darkhotel attack, which targeted users of wireless networks at hotels in Asia. It asked users to update their software, and then download malware that gave up their passwords.

In June 2015, Kaspersky announced that state-sponsored malware had infiltrated its own network. This malware was created by the same developers who created Duqu and Stuxnet to find new ways to evade detection. Kaspersky called it Duqu 2.0. The malicious software resided in memory to avoid detection. The hack was believed to have been done by the same group that did Duqu in 2011. It used exploits in Microsoft installer files.

In June 2015, Kaspersky Lab and Citizen Lab both independently discovered software developed by Hacking Team and used by 60 governments around the world to covertly record data from the mobile phones of their citizens. The software gave police enforcement a "menu of features" to access emails, text messages, keystrokes, call history and other data. Kaspersky also identified 37,000 attacks against banking companies that used modifications of the malware called Asacub and took control of Android devices. Asacub targeted mostly banking customers in the US, Russia and Ukraine using an SMS message that baited users into installing a Trojan.

5. Performance Evaluation & Extended Technical Observations In 2019, Kaspersky uncovered Titanium, a backdoor malware APT, developed by PLATINUM, a cybercrime collective. Kaspersky Lab reported the malware on November 8, 2019. In 2023, Kaspersky uncovered Triangulation, a sophisticated spyware campaign targeting iOS mobile devices. The malware exploited multiple zero-day vulnerabilities to gain full control of targeted devices. Triangulation was primarily distributed through malicious attachments in instant messaging apps. Once installed, it allowed attackers to access encrypted communications, GPS locations, and sensitive data. Kaspersky attributed this operation to a well-funded APT group with a global reach, but did not specify its location.

In 2015, Kaspersky identified a highly sophisticated threat actor that it called "The Equation Group". The group incorporated sophisticated spying software into the firmware of hard drives at banks, government agencies, nuclear researchers and military facilities, in countries that are frequent targets of US intelligence efforts. It is suspected to have been developed by the National Security Agency (NSA) and included many unique technical achievements to better avoid detection. That same day, Kaspersky announced the discovery of a hacker group it called Carbanak, which was targeting banks and moving millions of dollars into fake accounts. Carbanak was discovered when one bank asked Kaspersky to investigate suspicious behavior from its ATMs. A similar malware using some of the same techniques as Carbanak was discovered in 2016 and dubbed Carbanak 2.0.

Since 2015, Western media outlets and governments have accused Kaspersky of having close ties to the Russian government. In 2017, allegations emerged that hackers had used Kaspersky software to steal confidential data from the home computer of a contractor for the US National Security Agency (NSA). Kaspersky denied the allegations, reporting that the software had detected Equation Group malware samples which it uploaded to its servers for analysis in its normal course of operation. In September 2017, the US Department of Homeland Security banned federal agencies from using and purchasing Kaspersky software, requiring them to remove it from their systems within 90 days. In December, President Donald Trump signed the National Defense Authorization Act for Fiscal Year 2018, which extended this ban to military computers. In response, the company launched a “Global Transparency Initiative”, moving its infrastructure to process customer data to Switzerland and opening transparency centers in a number of countries to allow customers and regulators to review its source code and data processing practices. In 2022, following Russian invasion of Ukraine, the US warned companies about the risks of using Kaspersky software, and the FCC added it to its list of national security threats. In response, the company said the decision was political and expressed its willingness to cooperate with the authorities to address their concerns. In 2024, leaked emails showed that Kaspersky allegedly helped Russia develop software for spy drones. In April 2024, it became known that the US Department of Commerce was considering a complete ban on the sale of Kaspersky products. On June 20, Secretary of Commerce Gina Raimondo announced that sales would be banned in the US from July 20 and software updates from September 29, as part of Trump and Biden's executive orders on protecting data from “foreign adversaries.” In July, the company announced the closure of its US office and the dismissal of its staff, and on July 17, it offered US customers six months of free updates, warning of limited functionality after September 29. In February 2025, Australia banned the use of Kaspersky software in government agencies due to national security concerns. The Department of Home Affairs ordered its removal from government devices by April 1, bringing the country into line with other members of the Five Eyes intelligence pact — the US, Canada, and the UK.

Careto (“The Mask”) – In 2014, Kaspersky reported on the Careto campaign (also known as The Mask), which targeted Spanish-speaking countries. Kaspersky first publicly presented information about Careto at the SAS conference in Punta Cana. The attack reportedly lasted for many years and affected government and energy structures in more than 30 countries. Researchers noted that Careto was one of the most sophisticated cyber espionage operations. Equation Group – In 2015, the GReAT team presented an analysis of the attacks and malware used by the Equation Group, one of the most advanced APTs. Equation used malware at the hard drive firmware level and attacked hundreds of computers in dozens of countries.

The report on Equation caused significant attention in the professional community and the media. Carbanak – In 2015, Kaspersky researchers, in collaboration with law enforcement agencies, uncovered the Carbanak cybercriminal group, which defrauded about 100 banks around the world. Information about the attacks was presented at SAS in Cancun in 2015, including details of theft operations totaling up to $1 billion. It was proven that the attackers infected corporate bank networks and made unauthorized money transfers. De-anonymization of hackers – In 2015, research was presented at SAS on the de-anonymization of cybercriminals through analysis of their online behavior. Recorded Future showed how attackers, even those using Tor, left so many traces on the internet that they could be linked to real people. In particular, by analyzing common data leaks from attackers, Recorded Future showed that information about former hackers, including email addresses and passwords, was easily found in open sources. Moonlight Maze – The historic Moonlight Maze operation (late 1990s) was again the subject of analysis at SAS in 2016. A new investigation presented by Professor Thomas Reed linked the well-known Moonlight Maze operation to modern attacks by the Turla group. Moonlight Maze was one of the first identified cyber campaigns, likely sponsored at the state level (it attacked the Pentagon, NASA, and U.S. energy facilities), and its study served as the basis for understanding modern threats. Attack via CCleaner – In 2018, the Avast team presented a report at SAS on the results of its investigation into the compromise of the CCleaner utility. Experts discovered the ShadowPad backdoor in the CCleaner developers' infrastructure and presented details in a report at SAS in Cancun. The attack affected millions of users, and the report revealed technical details of the campaign, including links to the Axiom group (presumably associated with APT17). Data leaks via multi-scanning services – Representatives of Swisscom AG spoke about security threats arising from the fact that confidential data (personal, government, official, commercial) ends up in malware scanning services. Such services have effectively become repositories of sensitive business data, creating a new class of risks for corporate security. Vulnerabilities in robotics – Research by the MalCrawler team at SAS 2018 demonstrated security issues in industrial robotic systems: many industrial robots use outdated operating systems (e.g., Windows XP) and control systems that are accessible by default without a password, and robot control programs remain “open” to hacking. As a result, industrial facilities are vulnerable to “emergency shutdown” attacks (e.g., Triconex/Triton). ShadowHammer – In 2019, Kaspersky Lab uncovered the ShadowHammer supply chain attack: malicious code was embedded in official ASUS Live Update updates and delivered to 500,000–1,000,000 computers, with the attack specifically targeting approximately 600 systems. Analysis showed a high level of preparation for the operation using compromised ASUS digital certificates. Kaspersky's findings were also confirmed by Symantec. Operation Triangulation – A sophisticated spy attack on iOS devices using multiple zero-day vulnerabilities. Known cases of compromise cover the period from 2019 to 2024. Triangulation software allowed spies to gain complete control over victims' iPhones without interacting with the user. A description of this scheme and the hardware vulnerabilities used appeared in reports by Kaspersky and a review by Dark Reading. Journalists noted that Triangulation bypassed most of the iPhone's security mechanisms by relying on undocumented OS and hardware features. The research was presented at SAS in Thailand in 2023. Malware disguised as crypto games – In 2024, Kaspersky GReAT experts uncovered a sophisticated campaign by the Lazarus group, in which malware was distributed under the guise of a crypto game. According to the study, the attackers exploited users' interest in crypto assets and gaming projects to infect systems and subsequently conduct surveillance. Analysts noted the high level of concealment and the multi-stage nature of the attack.

New spyware from Hacking Team – In 2025, researchers recorded the use of Dante spyware tools linked to the Italian company Memento Labs, which emerged during the reorganization of Hacking Team. The campaign exploited a zero-day vulnerability in Chrome. The Linux Foundation (LF) is a nonprofit organization formed in 2007 to support the development of Linux and open-source software. The foundation provides hosted projects with governance structures and shared legal and operational services.

Originally focused primarily on Linux, the foundation has expanded into an umbrella organization for open-source projects and foundations across areas including cloud computing, artificial intelligence, software security, networking, and embedded systems. Its ecosystem includes the Cloud Native Computing Foundation (CNCF), which hosts Kubernetes; the PyTorch Foundation; and the Open Source Security Foundation (OpenSSF).

The Linux Plumbers Conference has been held annually since 2008. It focuses on the Linux kernel and related tools and libraries, typically lasts 3 days, and was held in the USA primarily for USA-based developers in its early years, but now is regularly held elsewhere in the world. Introduced in October 2017, the Community Data License Agreement (CDLA) is a legal framework for sharing data. There are two initial CDLA licenses: The CDLA-Sharing license was designed to embody the principles of copyleft in a data license. It puts terms in place to ensure that downstream recipients can use and modify that data, and are also required to share their changes to the data.

The CDLA-Permissive agreement is similar to permissive open source licenses in that the publisher of data allows anyone to use, modify, and do what they want with the data with no obligations to share changes or modifications. On March 3, 2009, the Linux Foundation announced that they would take over the management of Linux.com from its previous owners, SourceForge, Inc. The site was relaunched on May 13, 2009, shifting away from its previous incarnation as a news site to become a central source for Linux tutorials, information, software, documentation, and answers across the server, desktop/netbook, mobile, and embedded areas. It also includes a directory of Linux software and hardware. Much like Linux itself, Linux.com plans to rely on the community to create and drive content and conversation.

LF Energy is an initiative launched by the Linux Foundation in 2018 to improve the power grid. Official websites use .gov A .gov website belongs to an official government organization in the United States. Harvested Online Documentation & Reference Sources • https://en.wikipedia.org/wiki/Computer%20security • https://en.wikipedia.org/wiki/Kaspersky%20Lab • https://en.wikipedia.org/wiki/Linux%20Foundation • https://pmc.ncbi.nlm.nih.gov/articles/PMC8781858/