Technology giant Hewlett-Packard (HP) announced updates to its ArcSight portfolio, offering enterprises unified security analytics for big data with expanded identity monitoring to accelerate the detection of persistent threats. The series of updates includes ArcSight Threat Detector 2.0, which offers threat profiles and threat profile intelligence, and ArcSight Threat Response Manager 5.5, which provides cloud-ready, closed-loop capabilities for accelerated threat detection and response to mitigate advanced persistent threats (APTs).