Cybersecurity terminology · MLC-0102
Cybersecurity terms: U (70)
- u1. The number of bits in the last plaintext or ciphertext block.
- UDDI, see Universal Description, Discovery, and Integration (UDDI)
- UEFI, see Unified Extensible Firmware Interface (UEFI)
- UIThe physical or logical means by which users interact with a system, device or process.
- UICCAn integrated circuit card that securely stores the international mobile subscriber identity (IMSI) and the...
- umbilical cordThe cable that connects the space vehicle to the launch pad during pre-launch to monitor the vehicle health...
- UMTSa third-generation (3G) mobile phone technologies standardized by the 3GPP as the successor to GSM.
- UMTS Subscriber Identity Module (USIM)A module similar to the SIM in GSM/GPRS networks, but with additional capabilities suited to 3G networks.
- unattendedA facility is unattended when there is no human presence. Use of roaming guards and/or an intrusion detection...
- unauthorized access1. Any access that violates the stated security policy.
- Unbiased1. A value that is chosen from a sample space is said to be unbiased if all potential values have the same...
- UnbindTo deterministically transform a binding into its logical-form construct.
- unbounded differential privacyA unit of privacy variant that calls two datasets D_1 and D_2 neighbors if it is possible to construct D_2...
- unclassifiedInformation that does not require safeguarding or dissemination controls pursuant to Executive Order (E.O.)...
- unencrypted keyKey that has not been encrypted in a system approved by the National Security Agency (NSA) for key encryption...
- unidirectional gatewayUnidirectional gateways are a combination of hardware and software. The hardware permits data to flow from...
- Unified Extensible Firmware Interface (UEFI)A possible replacement for the conventional BIOS that is becoming widely deployed in new x86-based computer...
- Uniform Resource Identifier1. A uniform resource identifier, or URI, is a short string containing a name or address which refers to an...
- Uniform Resource Locator1. A uniform resource locator, or URL, is a short string containing an address which refers to an object in...
- UninstantiateThe termination of a DRBG instantiation.
- Uninterruptible Power SupplyA device with an internal battery that allows connected devices to run for at least a short time when the...
- unique identifier (UID)A numeric or alphanumeric string that is exclusively associated with a single entity.
- unit of privacyThe choice of definition for neighboring datasets.
- United States government configuration baseline (USGCB)1. The United States Government Configuration Baseline (USGCB) provides security configuration baselines for...
- United States Government EnvironmentA Custom environment that contains federal government systems to be secured according to prescribed...
- Universal Description, Discovery, and Integration (UDDI)An XML-based lookup service for locating Web services in an Internet Topology. UDDI provides a...
- Universal Integrated Circuit CardAn integrated circuit card that securely stores the international mobile subscriber identity (IMSI) and the...
- Universal Mobile Telecommunications System (UMTS)1. A third-generation (3G) mobile phone technology standardized by the 3GPP as the successor to GSM.
- Universal Principal Name, see UPN
- Universal Resource IdentifierA uniform resource identifier, or URI, is a short string containing a name or address which refers to an...
- Universal Resource LocatorA uniform resource locator, or URL, is a short string containing an address which refers to an object in the...
- Universal Serial Bus (USB)1. A hardware interface for low-speed peripherals such as the keyboard, mouse, joystick, scanner, printer...
- Universal Statistical TestThe purpose of the test is to detect whether or not the sequence can be significantly compressed without loss...
- Universal Subscriber Identity Module, see USIM
- unkeyedCOMSEC equipment containing no key or containing key that has been protected from unauthorized use by...
- Unmanaged DeviceA device inside the assessment boundary that is either unauthorized or, if authorized, not assigned to a...
- UnpredictableIn the context of random bit generation, an output bit is unpredictable if an adversary has only a negligible...
- unstructured dataData formats that often lack explicit structure that relates data to individuals, such as text, pictures...
- unsupervised learningA type of machine learning in which a model learns based on patterns in unlabeled data, such as learning a...
- untrusted partyA party that cannot be expected to keep sensitive data safe or refrain from disclosing it to others.
- untrusted processProcess that has not been evaluated or examined for correctness and adherence to the security policy. It may...
- unwrapping functionThe inverse of the wrapping function.
- UOCAVA SystemsInformation technology systems which support various aspects of the UOCAVA voting process?
- Update1. New, improved, or fixed software, which replaces older versions of the same software. For example...
- update (a certificate)The process of creating a new certificate with a new serial number that differs in one or more fields from...
- update (a key)Automatic or manual cryptographic process that irreversibly modifies the state of a COMSEC key, equipment...
- Update Server1. A server that provides patches and other software updates to IoT devices.
- Upgrade Management SystemThe hardware and software used to communicate and manage the Upgrade Process. The Upgrade Management System...
- UpgradingAn authorized increase in the level of protection to be provided to specified information, e.g., from a Low...
- uplinkCommunication that originates from the ground to the satellite.
- UPNIn Windows Active Directory, this is the name of a system user in email address format, i.e., a concatenation...
- UPSA device with an internal battery that allows connected devices to run for at least a short time when the...
- URI1. A uniform resource identifier, or URI, is a short string containing a name or address which refers to an...
- URLA uniform resource locator, or URL, is a short string containing an address which refers to an object in the...
- U.S. Computer Emergency Readiness Team, see US-CERT
- U.S. national interestsMatters of vital interest to the United States, including national security, economic security, public...
- U.S. person1. A person (as defined in 22 CFR 120.14) who is a lawful permanent resident as defined by 8 U.S.C. 1101(a)...
- U.S. Securities and Exchange Commission, see SEC
- Usability1. The extent to which a product can be used by specified users to achieve specified goals with...
- USBType of standard cable, connector, and protocol for connecting computers, electronic devices, and power...
- US-CERTA partnership between the Department of Homeland Security (DHS) and the public and private sectors...
- U.S.-controlled facilityA base or building, access to which is physically controlled by U.S. citizens or resident aliens who are...
- U.S.-controlled spaceA space (e.g., room or floor) within a facility other than a U.S.-controlled facility, access to which is...
- user1. Individual or (system) process authorized to access an information system.
- user activity monitoringThe technical capability to observe and record the actions and activities of an individual, at any time, on...
- user agreementA user-based agreement that is similar to rules of behavior. It specifies user responsibilities when...
- user IDA unique symbol or character string used by an information system to identify a specific user.
- User interfaceThe physical or logical means by which users interact with a system, device or process.
- User KeyA key that is used for granting access to a user account via the SSH protocol (as opposed to a host key...
- User Principal NameIn Windows Active Directory, this is the name of a system user in email address format, i.e., a concatenation...
- user representativeThe key management entity (KME) authorized by an organization and registered by the Central Facility...
- user representative (risk management)The person that defines the system's operational and functional requirements, and who is responsible for...
- user-level privacyA unit of privacy that defines neighboring databases as those that differ in one user’s data.
- user_supplied_infoAdditional information that is provided by an entity when requesting a timestamp from a TTA.
- USGCB, see United States government configuration baseline (USGCB)
- USIMA module similar to the SIM in GSM/GPRS networks, but with additional capabilities suited to 3G networks.
- utilityThe degree to which a dataset or statistic is useful for a specific purpose.
70 of 4,693 terms in Cybersecurity terminology (MLC-0102). Request the full dataset.