A - Definitions

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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 log

    An access log is a list of all requests for individual files -- such as Hypertext Markup Language files, their embedded graphic images and other associated files that get transmitted -- that people or bots have made from a website.

  • 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 (AES) is a symmetric block cipher chosen by the U.S. government to protect classified information.

  • adware

    Adware is any software application in which an advertising banner or other advertising material displays or downloads 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.

  • anti-money laundering software (AML)

    Anti-laundering software is a type of computer program used by financial institutions to analyze customer data and detect suspicious transactions... (Continued)

  • antispoofing

    Antispoofing is a technique for identifying and dropping packets that have a false source address.

  • antivirus software (antivirus program)

    Antivirus software (antivirus program) is a security program designed to prevent, detect, search and remove viruses and other types of malware from computers, networks and other devices.

  • application blacklisting (application blocklisting)

    Application blacklisting --increasingly called application blocklisting -- is a network or computer administration practice used to prevent the execution of undesirable software programs.

  • asymmetric cryptography

    Asymmetric cryptography, also known as public key cryptography, is a process that uses a pair of related keys -- one public key and one private key -- to encrypt and decrypt a message and protect it from unauthorized access or use.

  • authentication

    Authentication is the process of determining whether someone or something is who or what they say they are.

  • authentication factor

    An authentication factor is a category of credential that is intended to verify, sometimes in combination with other factors, that an entity involved in some kind of communication or requesting access to some system is who, or what, they are declared to be.

  • authentication server

    An authentication server is an application that facilitates the authentication of an entity that attempts to access a network.

  • AWS CloudTrail

    AWS CloudTrail is an application program interface (API) call-recording and log-monitoring service offered by Amazon Web Services (AWS).

  • What is access control?

    Access control is a security technique that regulates who or what can view or use resources in a computing environment.

  • What is an advanced persistent threat (APT)?

    An advanced persistent threat (APT) is a prolonged and targeted cyberattack in which an intruder gains access to a network and remains undetected for an extended period.

  • What is an attack vector?

    An attack vector is a path or means by which an attacker or hacker can gain access to a computer or network server to deliver a payload or malicious outcome.

  • What is Android System WebView and should you uninstall it?

    Android System WebView is a system component for the Android operating system (OS) that enables Android apps to display web content directly inside an application.

  • What is antimalware?

    Antimalware is a software program created to protect IT systems and individual computers from malicious software, or malware.

  • What is application allowlisting?

    Application allowlisting, previously known as 'application whitelisting,' is the practice of specifying an index of approved software applications or executable files that are permitted to be present and active on a computer system.

  • What is authentication, authorization and accounting (AAA)?

    Authentication, authorization and accounting (AAA) is a security framework for controlling and tracking user access within a computer network.