Plurilock DEFEND by Plurilock provides continuous zero trust authentication for endpoints. It detects compromised sessions and credentials in real time, ensuring full-session detection and real-time identity confirmation every 3-5 seconds during open sessions. Plurilock DEFEND does not require new hardware and uses existing keyboards and pointing devices to confirm a user's identity continuously. It ensures non-repudiation by identifying the individual behind account actions and correlates credential-to-user mismatches with interactive activity and key events. The process remains invisible to users, adding total identity awareness without new tools or workflows. Plurilock DEFEND is compatible with Windows endpoints, Mac OS endpoints, and VDI sessions, providing real-time credential and session compromise detection. It also includes self-healing capabilities to protect from attacks when malicious users gain administrative privileges, offering firmware-embedded architecture for better protection than other OS-level application protection. Plurilock DEFEND relies on patented behavioral biometrics and machine learning technology to recognize users by their work patterns, analyzing keyboard and pointer motion continuously to detect unusual behavior and take action when necessary. The engine runs on a cloud server designed for fault tolerance and high availability, ensuring nonstop identity verification.