U - Cybersecurity Glossary

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Glossary U

URI
Unauthorized Access
Unauthorized Disclosure
Unclassified
UEFI
Uniform Resource Identifier
Uninterruptible Power Supply
USB
URL
User
User ID

URI

A uniform resource identifier, or URI, is a short string containing a name or address which refers to an object in the "web."See NIST SP ...

Unauthorized Access

A person gains logical or physical access without permission to a network, system, application, data, or other resource. See NIST SP 800-82 Rev. 2 under Unauthorized ...

Unauthorized Disclosure

An event involving the exposure of information to entities not authorized access to the information. See the following under under Unauthorized disclosure for more information:NIST ...

Unclassified

Information that does not require safeguarding or dissemination controls pursuant to Executive Order (E.O.) 13556 (Controlled Unclassified Information) and has not been determined to require ...

UEFI

Unified Extensible Firmware Interface (UEFI)A possible replacement for the conventional BIOS that is becoming widely deployed in new x86-based computer systems. The UEFI specifications were ...

Uniform Resource Identifier

A uniform resource identifier, or URI, is a short string containing a name or address which refers to an object in the "web." See NIST SP 800-15 under ...

Uninterruptible Power Supply

A device with an internal battery that allows connected devices to run for at least a short time when the primary power source is lost. ...

USB

Universal Serial BusA hardware interface for low-speed peripherals such as the keyboard, mouse, joystick, scanner, printer, and telephony devices. See the following for more information: NIST SP ...

URL

Uniform Resource LocatorA uniform resource locator, or URL, is a short string containing an address which refers to an object in the "web." URLs are ...

User

An individual (person), organization, device, or process. Used interchangeably with “party”. See the following under Entity for more information: NIST SP 800-56A Rev. 2. NIST SP 800-56B Rev. ...

User ID

Unique symbol or character string used by an information system to identify a specific user.