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Computer security is the protection of computer software, systems and networks from threats that may result in unauthorized information disclosure, theft of hardware, software, or data, as well as from the disruption or misdirection of the services they provide.
Cybercrime encompasses a wide range of criminal activities that are carried out using digital devices and/or networks. These crimes involve the use of technology to commit fraud, identity theft, data breaches, computer viruses, scams, and expanded upon in other malicious acts. Cybercriminals exploit vulnerabilities in computer systems and networks to gain unauthorized access, steal sensitive information, disrupt services, and cause financial or reputational harm to individuals, organizations, and governments.
Cyberterrorism is the use of the Internet to conduct violent acts that result in, or threaten, the loss of life or significant bodily harm, in order to achieve political or ideological gains through threat or intimidation. Emerging alongside the development of information technology, cyberterrorism involves acts of deliberate, large-scale disruption of computer networks, especially of personal computers attached to the Internet by means of tools such as computer viruses, computer worms, phishing, malicious software, hardware methods, and programming scripts can all be forms of internet terrorism. Some authors opt for a very narrow definition of cyberterrorism, relating to deployment by known terrorist organizations of disruption attacks against information systems for the primary purpose of creating alarm, panic, or physical disruption. Other authors prefer a broader definition, which includes cybercrime. Participating in a cyberattack affects the terror threat perception, even if it isn't done with a violent approach. By some definitions, it might be difficult to distinguish which instances of online activities are cyberterrorism or cybercrime.
The Australian High Tech Crime Centre (AHTCC) are hosted by the Australian Federal Police (AFP) at their headquarters in Canberra. Under the auspices of the AFP, the AHTCC is party to the formal Joint Operating Arrangement established between the AFP, the Australian Security Intelligence Organisation and the Computer Network Vulnerability Team of the Australian Signals Directorate.
The July 2009 cyberattacks were a series of coordinated cyberattacks against major government, news media, and financial websites in South Korea and the United States. The attacks involved the activation of a botnet—a large number of hijacked computers—that maliciously accessed targeted websites with the intention of causing their servers to overload due to the influx of traffic, known as a DDoS attack. Most of the hijacked computers were located in South Korea. The estimated number of the hijacked computers varies widely; around 20,000 according to the South Korean National Intelligence Service, around 50,000 according to Symantec's Security Technology Response group, and more than 166,000 according to a Vietnamese computer security researcher who analyzed the log files of the two servers the attackers controlled. An investigation revealed that at least 39 websites were targets in the attacks based on files stored on compromised systems.
A cyberattack occurs when there is an unauthorized action against computer infrastructure that compromises the confidentiality, integrity, or availability of its content.
Cyber-insurance is a specialty insurance product intended to protect businesses from Internet-based risks, and more generally from risks relating to information technology infrastructure and activities. Risks of this nature are typically excluded from traditional commercial general liability policies or at least are not specifically defined in traditional insurance products. Coverage provided by cyber-insurance policies may include first and third parties coverage against losses such as data destruction, extortion, theft, hacking, and denial of service attacks; liability coverage indemnifying companies for losses to others caused, for example, by errors and omissions, failure to safeguard data, or defamation; and other benefits including regular security-audit, post-incident public relations and investigative expenses, and criminal reward funds.
The National Cyber Security Centre (NCSC) is a government computer security organisation in Ireland, an operational arm of the Department of the Environment, Climate and Communications. The NCSC was developed in 2013 and formally established by the Irish government in July 2015. It is responsible for Ireland's cyber security, with a primary focus on securing government networks, protecting critical national infrastructure, and assisting businesses and citizens in protecting their own systems. The NCSC incorporates the Computer Security Incident Response Team (CSIRT-IE).
Lazarus Group is a hacker group made up of an unknown number of individuals, alleged to be run by the government of North Korea. While not much is known about the Lazarus Group, researchers have attributed many cyberattacks to them since 2010. Originally a criminal group, the group has now been designated as an advanced persistent threat due to intended nature, threat, and wide array of methods used when conducting an operation. Names given by cybersecurity organizations include Hidden Cobra and ZINC or Diamond Sleet. According to North Korean defector Kim Kuk-song, the unit is internally known in North Korea as 414 Liaison Office.
On October 21, 2016, three consecutive distributed denial-of-service attacks were launched against the Domain Name System (DNS) provider Dyn. The attack caused major Internet platforms and services to be unavailable to large swathes of users in Europe and North America. The groups Anonymous and New World Hackers claimed responsibility for the attack, but scant evidence was provided.
Vault 7 is a series of documents that WikiLeaks began to publish on 7 March 2017, detailing the activities and capabilities of the United States Central Intelligence Agency (CIA) to perform electronic surveillance and cyber warfare. The files, dating from 2013 to 2016, include details on the agency's software capabilities, such as the ability to compromise cars, smart TVs, web browsers including Google Chrome, Microsoft Edge, Mozilla Firefox, and Opera, the operating systems of most smartphones including Apple's iOS and Google's Android, and computer operating systems including Microsoft Windows, macOS, and Linux. A CIA internal audit identified 91 malware tools out of more than 500 tools in use in 2016 being compromised by the release. The tools were developed by the Operations Support Branch of the CIA.
The WannaCry ransomware attack was a worldwide cyberattack in May 2017 by the WannaCry ransomware cryptoworm, which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency. It was propagated by using EternalBlue, an exploit developed by the United States National Security Agency (NSA) for Windows systems. EternalBlue was stolen and leaked by a group called The Shadow Brokers a month prior to the attack. While Microsoft had released patches previously to close the exploit, much of WannaCry's spread was from organizations that had not applied these, or were using older Windows systems that were past their end of life. These patches were imperative to cyber security, but many organizations did not apply them, citing a need for 24/7 operation, the risk of formerly working applications breaking because of the changes, lack of personnel or time to install them, or other reasons.
EternalBlue is a computer exploit software developed by the U.S. National Security Agency (NSA). It is based on a vulnerability in Microsoft Windows that allowed users to gain access to any number of computers connected to a network. The NSA knew about this vulnerability but did not disclose it to Microsoft for several years, since they planned to use it as a defense mechanism against cyber attacks. In 2017, the NSA discovered that the software was stolen by a group of hackers known as the Shadow Brokers. Microsoft was informed of this and released security updates in March 2017 patching the vulnerability. While this was happening, the hacker group attempted to auction off the software, but did not succeed in finding a buyer. EternalBlue was then publicly released on April 14, 2017.
Petya is a family of encrypting malware that was first discovered in 2016. The malware targets Microsoft Windows–based systems, infecting the master boot record to execute a payload that encrypts a hard drive's file system table and prevents Windows from booting. It subsequently demands that the user make a payment in Bitcoin in order to regain access to the system.
The Strengthening State and Local Cyber Crime Fighting Act of 2017 is a bill introduced in the United States House of Representatives by U.S. Representative John Ratcliffe (R-Texas). The bill would amend the Homeland Security Act of 2002 to authorize the National Computer Forensics Institute, with the intent of providing local and state officials with resources to better handle cybercrime threats. Ratcliffe serves as the current chairman of the House Homeland Security Subcommittee on Cybersecurity and Infrastructure Protection.
Election cybersecurity or election security refers to the protection of elections and voting infrastructure from cyberattack or cyber threat – including the tampering with or infiltration of voting machines and equipment, election office networks and practices, and voter registration databases.
Ghana has one of the highest rates of cybercrime in the world, ranking 7th in a 2008 Internet Crime Survey. The most popular form of cybercrime in Ghana is cyberfraud and is typically achieved via credit card fraud. However, recent decreases in universal credit card usage has seen the expansion of other cybercrimes such as blackmail and hacking. This growth in crime has warranted a government response, with policies specifically addressing the cyberspace being developed. This has necessitated various studies including a cyber security maturity study which was inaugurated by the Ministry of Communications and conducted by the Global Cyber Security Capacity Center (GCSCC) of the University of Oxford in collaboration with the World Bank.
The 2018 SingHealth data breach was a data breach incident initiated by unidentified state actors, which happened between 27 June and 4 July 2018. During that period, personal particulars of 1.5 million SingHealth patients and records of outpatient dispensed medicines belonging to 160,000 patients were stolen. Names, National Registration Identity Card (NRIC) numbers, addresses, dates of birth, race, and gender of patients who visited specialist outpatient clinics and polyclinics between 1 May 2015 and 4 July 2018 were maliciously accessed and copied. Information relating to patient diagnosis, test results and doctors' notes were unaffected. Information on Prime Minister Lee Hsien Loong was specifically targeted.
Sandworm is an advanced persistent threat operated by Military Unit 74455, a cyberwarfare unit of the GRU, Russia's military intelligence service. Other names for the group, given by cybersecurity researchers, include Telebots, Voodoo Bear, IRIDIUM, Seashell Blizzard, and Iron Viking.
The cyber kill chain is the process by which perpetrators carry out cyberattacks. Lockheed Martin adapted the concept of the kill chain from a military setting to information security, using it as a method for modeling intrusions on a computer network. The cyber kill chain model has seen some adoption in the information security community. However, acceptance is not universal, with critics pointing to what they believe are fundamental flaws in the model.
References
- 1 2 Nissim Ben Saadon, Cyber attribution: Do you really need to know?
- 1 2 Panayotis A. Yannakogeorgos, Strategies for Resolving the Cyber Attribution Challenge, Air University Press, Maxwell Air Force Base, Alabama
- 1 2 Skopik & Pahi 2020, p. 1.
- ↑ Skopik & Pahi 2020, pp. 1, 6.
- ↑ Skopik & Pahi 2020, p. 12.
- ↑ Skopik & Pahi 2020, p. 16.
- Skopik, Florian; Pahi, Timea (2020). "Under false flag: using technical artifacts for cyber attack attribution". Cybersecurity. 3 (1): 8. doi: 10.1186/s42400-020-00048-4 . ISSN 2523-3246.
