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🎉 The 2025 OpenSSF Annual Report Has ArrivedDiscover the milestones, community momentum, and ecosystem-wide wins

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The Open Source Security Foundation (OpenSSF) is a community of software developers, security engineers, and more who are working together to secure open source software for the greater public good.

Collaborate on capabilities and best practices that secure open source software.

Participate in the latest community conversations and engage with experts.

Take free courses on secure coding practices as part of our certificate program.

Explore our helpful security guides to help secure your project from the start.

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OpenSSF Hosted Events

OpenSSF events are a great opportunity to get involved with the OpenSSF community across the security and open source ecosystem. Join us and share ideas, progress, and collaborate on securing open source software.

Read the Latest Reports From OpenSSF

OpenSSF Annual Report
2025 Annual Report

2025 Annual Report

Secure Open Source Software Vision Brief 2025
Improving Risk Management Decisions with SBOM Data

Improving Risk Management Decisions with SBOM Data

Practical Guide for Building Robust AI/ML Pipeline Security
MLSecOps Whitepaper

Practical Guide for Building Robust AI/ML Pipeline Security

Recent Blog Posts

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BlogEU Cyber Resilience ActGuest BlogEU Cyber Resilience Act (CRA) in Practice @ FOSDEM 2026: From Awareness to Action
February 17, 2026

EU Cyber Resilience Act (CRA) in Practice @ FOSDEM 2026: From Awareness to Action

Over the past few years, the free and open source (FOSS) community has engaged deeply with the CRA, highlighting its significance and potential impact.
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BlogGuest BlogSecurity Slam 2026
February 13, 2026

Security Slam 2026

Security Slam 2026 is a 30-day event that begins February 20 and culminates in an awards ceremony at KubeCon + CloudNativeCon Europe (KCCN EU).
OpenSSF
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BlogGuest BlogFill Out All The Margins 📖: OpenSSF Releases Compiler Annotations Guide for C and C++
February 12, 2026

Fill Out All The Margins 📖: OpenSSF Releases Compiler Annotations Guide for C and C++

OpenSSF’s new Compiler Annotations for C and C++ guide helps developers use compiler-specific annotations to communicate code intent to the compiler, improve diagnostics, improve optimizations, and provide stronger security and…
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Open source software is pervasive in data centers, consumer devices, and applications. Securing open source software requires fostering collaboration, establishing best practices, and developing innovative solutions.

Join the growing list of organizations supporting the advancement of securing open source technology and funding the development and adoption of OpenSSF initiatives.

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