The Open Source Security Foundation (OpenSSF) introduced Siren to provide threat intelligence specific to open source projects, addressing the need for better dissemination after the XZ Utils compromise.
Siren acts as a centralized platform for OSS projects and maintainers to share Tactics, Techniques, Procedures (TTPs), and Indicators of Compromise (IoCs) similar to corporate TIPs, benefiting the OSS community lacking access to such tools.
Key features of Siren include Open Source Threat Intelligence (OSINT) sharing actively exploited vulnerabilities, real-time updates on emerging threats via email, and adherence to TLP:CLEAR for transparent communication within the community.
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