Definition
User and entity behavior analytics UEBA is a cybersecurity approach that identifies threats by monitoring user and device activity for deviations from normal patterns. It establishes a baseline of typical behavior for users and entities like servers or applications, then flags anomalies that could indicate malicious intent or compromised systems. This technology is crucial for detecting insider threats, account takeovers, and advanced persistent threats that often evade traditional signature-based security tools. For instance, UEBA can alert administrators if an employee suddenly accesses sensitive files outside of their usual working hours or from an unfamiliar location. Unlike simple intrusion detection systems that look for known attack signatures, UEBA focuses on behavioral anomalies, making it effective against novel or zero-day threats. You will encounter UEBA concepts on exams such as CompTIA Security+, CySA+, and CISSP.