Malicious Code


Malicious code is the term used to describe any code in any part of a software system or script that is intended to cause undesired effects, security breaches or damage to a system. Malicious code describes a broad category of system security terms that includes attack scripts, viruses, worms, Trojan horses, backdoors, and malicious active content.

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  • malvertising

    (mal’ ver tiz’ ing) (n.) Malicious online advertising, typically performed by masking malicious computer code with seemingly harmless online advertisements. The advertisements may lead to harmful or deceptive content or may directly infect a victim’s computer with malicious software (malware) that can damage data, steal personal information or even bring the user’s computer under the […]

  • Malware

    (mal´wãr) (n.) Short for malicious software, malware refers to software designed specifically to damage or disrupt a system, such as a virus or a Trojan horse.

  • man-in-the-middle attack

    Abbreviated as MITM, a man-in-the-middle attack is an active Internet attack where the person attacking attempts to intercept, read or alter information moving between two computers. MITM attacks are associated with 802.11 security, as well as with wired communication systems.

  • man page

    Short for manual page, a page of on-line documentation in UNIX systems. Every UNIX command, utility, and library function has an associated man page that you can view by entering the command: > man For example, to find out about the man command itself, you would enter: > man man If you don’t know the […]

  • manual recalculation

    In spreadsheet programs, a mode in which formulas are not recalculated until you explicitly (manually) run the recalculation function. Compare with automatic recalculation, where cells containing formulas are automatically reevaluated whenever necessary.


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