Quick Definition
User Behavior Analytics, or UBA (sometimes also called User and Entity Behavior Analytics, or UEBA) describes the monitoring and analysis of activity carried out while users (and, in the case of UEBA, while automated systems and devices) do their work.
This monitoring and analysis may be used for identity confirmation, for threat detection and response, for generating productivity insights, or for any other application in which extensive, real-time data about user activity is useful.
UBA is often a key input into and/or feature of security information and event management (SIEM) systems in enterprises.