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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.
Industrial espionage, economic espionage, corporate spying, or corporate espionage is a form of espionage conducted for commercial purposes instead of purely national security.
A script kiddie, skript kiddie, skiddie, kiddie, or skid is an unskilled individual who uses scripts or programs developed by others, primarily for malicious purposes.
A web browser is an application for accessing websites and the Internet. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's screen. Browsers are used on a range of devices, including desktops, laptops, tablets, and smartphones. In 2020, an estimated 4.9 billion people have used a browser. The most used browser is Google Chrome, with a 65% global market share on all devices, followed by Safari with 18%.
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. 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, 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 Relay Chat Flooding/Scrolling on an IRC network is a method of disconnecting users from an IRC server, exhausting bandwidth which causes network latency ('lag'), or just disrupting users. Floods can either be done by scripts or by external programs.
Brendan Patrick Kehoe was an Irish software developer and writer. Born in Dublin, Ireland, Kehoe was raised in China, Maine. In his early teens, he was first exposed to computing when he was given a Commodore 64 computer, which he used to teach himself about computing and computer networks. On leaving high-school, he moved to Widener University where he continued his computer studies, leaving in 1992.
Steven M. Bellovin is a researcher on computer networking and security who has been a professor in the computer science department at Columbia University since 2005. Previously, Bellovin was a fellow at AT&T Labs Research in Florham Park, New Jersey.
A security hacker is someone who explores methods for breaching defenses and exploiting weaknesses in a computer system or network. Hackers may be motivated by a multitude of reasons, such as profit, protest, information gathering, challenge, recreation, or evaluation of a system weaknesses to assist in formulating defenses against potential hackers.
Johnny Long, otherwise known as "j0hnny" or "j0hnnyhax", is a computer security expert, author, and public speaker in the United States.
Winn Schwartau is a computer security analyst who focuses on internet security, internet privacy, infowar, cyber-terrorism and related topics.
Operation Aurora was a series of cyber attacks conducted by advanced persistent threats such as the Elderwood Group based in Beijing, China, with ties to the People's Liberation Army. First publicly disclosed by Google on January 12, 2010, in a blog post, the attacks began in mid-2009 and continued through December 2009.
Low Orbit Ion Cannon (LOIC) is an open-source network stress testing and denial-of-service attack application written in C#. LOIC was initially developed by Praetox Technologies, however it was later released into the public domain and is currently available on several open-source platforms.
Cyberwarfare is the use of computer technology to disrupt the activities of a state or organization, especially the deliberate attacking of information systems for strategic or military purposes. As a major developed economy, the United States is highly dependent on the Internet and therefore greatly exposed to cyber attacks. At the same time, the United States has substantial capabilities in both defense and power projection thanks to comparatively advanced technology and a large military budget. Cyber warfare presents a growing threat to physical systems and infrastructures that are linked to the internet. Malicious hacking from domestic or foreign enemies remains a constant threat to the United States. In response to these growing threats, the United States has developed significant cyber capabilities.
Cyberwarfare by China is the aggregate of all combative activities in the cyberspace which are taken by organs of the People's Republic of China, including affiliated advanced persistent threat groups, against other countries.
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 (DDoS).
The following outline is provided as an overview of and topical guide to computer security:
In cybersecurity, cyber self-defense refers to self-defense against cyberattack. While it generally emphasizes active cybersecurity measures by computer users themselves, cyber self-defense is sometimes used to refer to the self-defense of organizations as a whole, such as corporate entities or entire nations. Surveillance self-defense is a variant of cyber self-defense and largely overlaps with it. Active and passive cybersecurity measures provide defenders with higher levels of cybersecurity, intrusion detection, incident handling and remediation capabilities. Various sectors and organizations are legally obligated to adhere to cyber security standards.
This is a list of cybersecurity information technology. Cybersecurity is security as it is applied to information technology. This includes all technology that stores, manipulates, or moves data, such as computers, data networks, and all devices connected to or included in networks, such as routers and switches. All information technology devices and facilities need to be secured against intrusion, unauthorized use, and vandalism. Additionally, the users of information technology should be protected from theft of assets, extortion, identity theft, loss of privacy and confidentiality of personal information, malicious mischief, damage to equipment, business process compromise, and the general activity of cybercriminals. The public should be protected against acts of cyberterrorism, such as the compromise or loss of the electric power grid.
References
- ↑ Himma, Kenneth Einar (2007). Internet security: hacking ... – Google Books. Jones & Bartlett Learning. ISBN 9780763735364 . Retrieved May 10, 2010.
- ↑ Ray, John; Ray, William (2003). Mac OS X maximum security – Google Books. Sams. ISBN 9780672323812 . Retrieved May 10, 2010.
- ↑ Skoudis, Ed; Liston, Tom (December 6, 2007). Counter hack reloaded: a step-by ... – Google Books. Prentice Hall Professional Technical Reference. ISBN 9780131481046 . Retrieved May 10, 2010.
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