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Computer security, cybersecurity, digital security or information technology security is the protection of computer systems and networks from attacks by malicious actors that may result in unauthorized information disclosure, theft of, or damage to 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.
Computer forensics is a branch of digital forensic science pertaining to evidence found in computers and digital storage media. The goal of computer forensics is to examine digital media in a forensically sound manner with the aim of identifying, preserving, recovering, analyzing and presenting facts and opinions about the digital information.
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. 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. Cyberterrorism is a controversial term. Some authors opt for a very narrow definition, 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.
Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing, online viruses, trojans, ransomware and worms.
The Computer Misuse Act 1990 is an act of the Parliament of the United Kingdom, introduced partly in response to the decision in R v Gold & Schifreen (1988) 1 AC 1063. Critics of the bill complained that it was introduced hastily, was poorly thought out, and that intention was often difficult to prove, with the bill inadequately differentiating "joyriding" hackers like Gold and Schifreen from serious computer criminals. The Act has nonetheless become a model from which several other countries, including Canada and the Republic of Ireland, have drawn inspiration when subsequently drafting their own information security laws, as it is seen "as a robust and flexible piece of legislation in terms of dealing with cybercrime". Several amendments have been passed to keep the Act up to date.
Computer fraud is the use of computers, the Internet, Internet devices, and Internet services to defraud people or organizations of resources. In the United States, computer fraud is specifically proscribed by the Computer Fraud and Abuse Act (CFAA), which criminalizes computer-related acts under federal jurisdiction and directly combats the insufficiencies of existing laws. Types of computer fraud include:
Digital forensics is a branch of forensic science encompassing the recovery, investigation, examination, and analysis of material found in digital devices, often in relation to mobile devices and computer crime. The term "digital forensics" was originally used as a synonym for computer forensics but has expanded to cover investigation of all devices capable of storing digital data. With roots in the personal computing revolution of the late 1970s and early 1980s, the discipline evolved in a haphazard manner during the 1990s, and it was not until the early 21st century that national policies emerged.
A cybersecurity regulation comprises directives that safeguard information technology and computer systems with the purpose of forcing companies and organizations to protect their systems and information from cyberattacks like viruses, worms, Trojan horses, phishing, denial of service (DOS) attacks, unauthorized access and control system attacks. While cybersecurity regulations aim to minimize cyber risks and enhance protection, the uncertainty arising from frequent changes or new regulations can significantly impact organizational response strategies.
Crime prevention is the attempt to reduce and deter crime and criminals. It is applied specifically to efforts made by governments to reduce crime, enforce the law, and maintain criminal justice.
Cyberstalking is the use of the Internet or other electronic means to stalk or harass an individual, group, or organization. It may include false accusations, defamation, slander and libel. It may also include monitoring, identity theft, threats, vandalism, solicitation for sex, doxing, or blackmail. These unwanted behaviors are perpetrated online and cause intrusion into an individual's digital life as well as negatively impact a victim's mental and emotional well-being, as well as their sense of safety and security online.
The digital forensic process is a recognized scientific and forensic process used in digital forensics investigations. Forensics researcher Eoghan Casey defines it as a number of steps from the original incident alert through to reporting of findings. The process is predominantly used in computer and mobile forensic investigations and consists of three steps: acquisition, analysis and reporting.
In computer security, a threat is a potential negative action or event facilitated by a vulnerability that results in an unwanted impact to a computer system or application.
Cyber crime, or computer crime, refers to any crime that involves a computer and a network. The computer may have been used in the commission of a crime, or it may be the target. Netcrime refers, more precisely, to criminal exploitation of the Internet. Issues surrounding this type of crime have become high-profile, particularly those surrounding hacking, copyright infringement, identity theft, child pornography, and child grooming. There are also problems of privacy when confidential information is lost or intercepted, lawfully or otherwise.
The Classification System for Serial Criminal Patterns (CSSCP) is an artificial intelligence computer system that assists law enforcement officials in identifying links between serial crimes. Working in conjunction with a neural network called a Kohonen network, CSSCP finds patterns in law enforcement databases by analyzing the characteristics of an offender, the criminal activities that have occurred, and the objects used in a crime. Once the links between crimes have been identified by CSSCP, law enforcement officials can then use the data that is produced to build leads or solve criminal cases. Through its capability to run autonomously, the CSSCP has proven that it can operate non-stop without any human interaction and can achieve results with much more accuracy and efficiency than a human.
A cyberattack is any offensive maneuver that targets computer information systems, computer networks, infrastructures, personal computer devices, or smartphones. An attacker is a person or process that attempts to access data, functions, or other restricted areas of the system without authorization, potentially with malicious intent. Depending on the context, cyberattacks can be part of cyber warfare or cyberterrorism. A cyberattack can be employed by sovereign states, individuals, groups, societies or organizations and it may originate from an anonymous source. A product that facilitates a cyberattack is sometimes called a cyber weapon. Cyberattacks have increased over the last few years. A well-known example of a cyberattack is a distributed denial of service attack.
Forensic data analysis (FDA) is a branch of digital forensics. It examines structured data with regard to incidents of financial crime. The aim is to discover and analyse patterns of fraudulent activities. Data from application systems or from their underlying databases is referred to as structured data.
The following outline is provided as an overview of and topical guide to computer security:
A threat actor, bad actor or malicious actor is either a person or a group of people that take part in an action that is intended to cause harm to the cyber realm including: computers, devices, systems, or networks. The term is typically used to describe individuals or groups that perform malicious acts against a person or an organization of any type or size. Threat actors engage in cyber related offenses to exploit open vulnerabilities and disrupt operations. Threat actors have different educational backgrounds, skills, and resources. The frequency and classification of cyber attacks changes rapidly. The background of threat actors helps dictate who they target, how they attack, and what information they seek. There are a number of threat actors including: cyber criminals, nation-state actors, ideologues, thrill seekers/trolls, insiders, and competitors. These threat actors all have distinct motivations, techniques, targets, and uses of stolen data. See Advanced persistent threats for a list of identified threat actors.
References
- ↑ Romney, Marshall (1995). "Computer fraud--what can be done about it?". CPA Journal. 65: 30.
- ↑ "The 12 types of Cyber Crime". Digit. Retrieved October 1, 2018.
- ↑ Parker, Donn B. (1989). Computer Crime: Criminal Justice Resource Manual (PDF) (2nd ed.). National Institute of Justice. pp. 12–13.
- ↑ Hébert, Monique; Pilon, Marilyn (1991). Computer Crime. Law and Government Division, Library of Parliament.[ permanent dead link ]
- ↑ Silverbug. "10 Types Of Cyber Crimes... And Another 10 You've Never Heard Of". www.silverbug.it. Retrieved 2019-04-25.
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