Home — OSSECWelcome to the official OSSEC website. Here you can find free OSSEC open-source host-based intrusion detection system (HIDS) downloads and community support. Atomicorp manages the OSSEC project and actively develops OSSEC. See OSSEC Development Timeline. The foundational OSSEC HIDS provides multi–platform log-based intrusion detection, file integrity monitoring (FIM), malware detection, active res
