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    AAA server (authentication, authorization, and accounting)

    An AAA server is a server program that handles user requests for access to computer resources and, for an enterprise, provides authentication, authorization, and accounting (AAA) services.

  • access control

    Access control is a security technique that can be used to regulate who or what can view or use resources in a computing environment.

  • access log

    An access log is a list of all the requests for individual files that people have requested from a Web site.

  • address space layout randomization (ASLR)

    Address space layout randomization (ASLR) is a memory-protection process for operating systems (OSes) that guards against buffer-overflow attacks by randomizing the location where system executables are loaded into memory.

  • Advanced Encryption Standard (AES)

    The Advanced Encryption Standard, or AES, is a symmetric block cipher used by the U.S. government to protect classified information and is implemented in software and hardware throughout the world to encrypt sensitive data.

  • advanced evasion technique (AET)

    An advanced evasion technique (AET) is a type of network attack that combines several different known evasion techniques on-the-fly to create a new technique that won't be recognized by an intrusion detection system

  • advanced persistent threat (APT)

    An advanced persistent threat is a network attack in which an unauthorized person gains access to a network and stays there undetected for a long period of time. The purpose of an APT attack is to steal data rather than to cause damage.

  • adware

    Adware is any software application in which advertising banners are displayed while a program is running.

  • alternate data stream (ADS)

    An alternate data stream (ADS) is a feature of Windows New Technology File System (NTFS) that contains metadata for locating a specific file by author or title.

  • Android WebView

    Android WebView is a component that allows Web developers to render a web page within an Android app.

  • anonymous email

    Anonymous e-mail is e-mail that has been directed to a recipient through a third-party server that does not identify the originator of the message.

  • anonymous Web surfing (Web anonymizer, SafeWeb)

    Anonymous Web surfing allows a user to visit Web sites without allowing anyone to gather information about which sites the user visited.

  • Antigen

    Sybari's Antigen is antivirus software for Lotus Domino and Microsoft Exchange.

  • antimalware (anti-malware)

    Antimalware (anti-malware) is a type of software program designed to prevent, detect and remove malicious software (malware) on IT systems, as well as individual computing devices.

  • antispoofing

    Antispoofing is a technique for countering spoofing attacks on a computer network.

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