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  2. Access control - Wikipedia

    en.wikipedia.org/wiki/Access_control

    In physical security and information security, access control ( AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization .

  3. Computer access control - Wikipedia

    en.wikipedia.org/wiki/Computer_access_control

    Computer access control. In computer security, general access control includes identification, authorization, authentication, access approval, and audit. A more narrow definition of access control would cover only access approval, whereby the system makes a decision to grant or reject an access request from an already authenticated subject ...

  4. Access-control list - Wikipedia

    en.wikipedia.org/wiki/Access-control_list

    Access-control list. In computer security, an access-control list ( ACL) is a list of permissions [a] associated with a system resource (object or facility). An ACL specifies which users or system processes are granted access to resources, as well as what operations are allowed on given resources. [1] Each entry in a typical ACL specifies a ...

  5. Mandatory access control - Wikipedia

    en.wikipedia.org/wiki/Mandatory_access_control

    Mandatory access control. In computer security, mandatory access control ( MAC) refers to a type of access control by which the operating system or database constrains the ability of a subject or initiator to access or generally perform some sort of operation on an object or target. [1] In the case of operating systems, a subject is usually a ...

  6. Security controls - Wikipedia

    en.wikipedia.org/wiki/Security_controls

    Security controls are safeguards or countermeasures to avoid, detect, counteract, or minimize security risks to physical property, information, computer systems, or other assets. [1] In the field of information security, such controls protect the confidentiality, integrity and availability of information . Systems of controls can be referred to ...

  7. Logical access control - Wikipedia

    en.wikipedia.org/wiki/Logical_access_control

    Logical access controls enforce access control measures for systems, programs, processes, and information. The controls can be embedded within operating systems, applications, add-on security packages, or database and telecommunication management systems. The line between logical access and physical access can be blurred when physical access is ...

  8. Discretionary access control - Wikipedia

    en.wikipedia.org/wiki/Discretionary_access_control

    Discretionary access control. In computer security, discretionary access control ( DAC) is a type of access control defined by the Trusted Computer System Evaluation Criteria [1] (TCSEC) as a means of restricting access to objects based on the identity of subjects and/or groups to which they belong. The controls are discretionary in the sense ...

  9. Access control matrix - Wikipedia

    en.wikipedia.org/wiki/Access_Control_Matrix

    Access control matrix. In computer science, an access control matrix or access matrix is an abstract, formal security model of protection state in computer systems, that characterizes the rights of each subject with respect to every object in the system. It was first introduced by Butler W. Lampson in 1971. [1]

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