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  2. Firewall (computing) - Wikipedia

    en.wikipedia.org/wiki/Firewall_(computing)

    Firewall (computing) In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. [1][2] A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet. [3]

  3. Social engineering (security) - Wikipedia

    en.wikipedia.org/wiki/Social_engineering_(security)

    Social engineering (security) For the influencing of attitudes and social behaviors on a large scale, see social engineering (political science). In the context of information security, social engineering is the psychological manipulation of people into performing actions or divulging confidential information. A type of confidence trick for the ...

  4. Personal firewall - Wikipedia

    en.wikipedia.org/wiki/Personal_firewall

    A personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy. [1] Typically it works as an application layer firewall. A personal firewall differs from a conventional firewall in terms of scale. A personal firewall will usually protect only the ...

  5. Computer network - Wikipedia

    en.wikipedia.org/wiki/Computer_network

    Computer networking may be considered a branch of computer science, computer engineering, and telecommunications, since it relies on the theoretical and practical application of the related disciplines. Computer networking was influenced by a wide array of technological developments and historical milestones.

  6. Computer security - Wikipedia

    en.wikipedia.org/wiki/Computer_security

    An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that may result in unauthorized information disclosure, theft of (or damage to) hardware, software, or ...

  7. Information security - Wikipedia

    en.wikipedia.org/wiki/Information_security

    Information security, sometimes shortened to infosec, [ 1 ] is the practice of protecting information by mitigating information risks. It is part of information risk management. [ 2 ][ 3 ] It typically involves preventing or reducing the probability of unauthorized or inappropriate access to data or the unlawful use, disclosure, disruption ...

  8. Internet - Wikipedia

    en.wikipedia.org/wiki/Internet

    v. t. e. The Internet (or internet) [ a ] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [ b ] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad ...

  9. Zero trust security model - Wikipedia

    en.wikipedia.org/wiki/Zero_trust_security_model

    In April 1994, the term "zero trust" was coined by Stephen Paul Marsh in his doctoral thesis on computer security at the University of Stirling.Marsh's work studied trust as something finite that can be described mathematically, asserting that the concept of trust transcends human factors such as morality, ethics, lawfulness, justice, and judgement.