The means used to confirm the identity of a user, processor, or device

Threat Intelligence

Threat information that has been aggregated, transformed, analyzed, interpreted


A token or packet of information that is used to provide assurance of timeliness


Updated code from Microsoft that addresses a specific security problem.


The time or phase difference between the data signal and the ideal clock.

Information Leakage

The intentional or unintentional release of information to an untrusted environment.


Individually Identifiable Health Information Information that is a subset of health information

Key Pair

A public key and its corresponding private key; a key pair is used with a public key

Key Rotation

Changing the key, i.e., replacing it by a new key. The places that use the key or keys

Key Recovery

A function in the lifecycle of keying material; mechanisms and processes

Life Cycle

Evolution of a system, product, service, project, or other human-made entity

Key Revocation

A function in the lifecycle of keying material; a process whereby a notice is made


A weighted factor based on a subjective analysis of the probability that a given threat


A type of threat action whereby an unauthorized entity gains access to a system


A protocol defined in IETF RFCs 2440 and 3156 for encrypting messages


An online protocol used to determine the status of a public key certificate.

Development Life Cycle

The scope of activities associated with a system, encompassing the system’s initiation


To reduce the magnetic flux to virtual zero by applying a reverse magnetizing field.

Ephemeral Key Pair

A key pair, consisting of a public key and a private key that is intended

Ephemeral Key

A cryptographic key that is generated for each execution of a key-establishment