OSSEC
The foundational OSSEC HIDS provides multi–platform log-based intrusion detection, file integrity monitoring (FIM) , malware detection, active response, compliance auditing, and more.
Free software · ossec.github.io
Open OSSEC in AirStackWhat OSSEC’s own pages say
| What it says it does | The foundational OSSEC HIDS provides multi–platform log-based intrusion detection, file integrity monitoring (FIM) , malware detection, active response, compliance auditing, and more. ossec.github.io |
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| Platforms | FreeBSD, Linux, OpenBSD, Unix, Windows, macOS ossec.github.io |
| Free plan | Yes ossec.github.io |
| Open source | Yes ossec.github.io |
Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.