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In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system or program by identifying and authenticating themselves. The user credentials are typically some form of a username and a password, and these credentials themselves are sometimes referred to as a login.
A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation. 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 ...
Mandatory access control. In computer security, mandatory access control ( MAC) refers to a type of access control by which a secured environment (e.g., an operating system or a database) constrains the ability of a subject or initiator to access or modify on an object or target. [1] In the case of operating systems, the subject is a process or ...
The Metropolitan Transportation Authority (MTA) provides local and express bus, subway, and commuter rail service in Greater New York, and operates multiple toll bridges and tunnels in New York City. The Metropolitan Transportation Authority ( MTA) is a public benefit corporation responsible for public transportation in the New York City ...
In computer systems security, role-based access control (RBAC) or role-based security is an approach to restricting system access to authorized users, and to implementing mandatory access control (MAC) or discretionary access control (DAC).
Attribute-based access control is sometimes referred to as policy-based access control (PBAC) or claims-based access control (CBAC), which is a Microsoft-specific term. The key standards that implement ABAC are XACML and ALFA (XACML).
Logging in and setting preferences were previously done separately on each wiki. Since May 2008 it has been possible to use the same username, password and email address across all Wikimedia wikis, without needing to register an account on each wiki. For more details, see m:Help:Unified login .
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The New York City Transit Authority (also known as NYCTA, the TA, [2] or simply Transit, [3] and branded as MTA New York City Transit) is a public-benefit corporation in the U.S. state of New York that operates public transportation in New York City. Part of the Metropolitan Transportation Authority, the busiest and largest transit system in ...