🎉 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 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

Secure Open Source Software Vision Brief 2025

Improving Risk Management Decisions with SBOM Data

Practical Guide for Building Robust AI/ML Pipeline Security

Practical Guide for Building Robust AI/ML Pipeline Security

Recent Blog Posts

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…
BlogHave a Security Lesson Worth Sharing? Submit a Talk at OpenSSF Community Day North America
February 10, 2026

Have a Security Lesson Worth Sharing? Submit a Talk at OpenSSF Community Day North America

OpenSSF Community Day North America is happening this year in Minneapolis, and the Call for Proposals (CFP) is open through February 15.
BlogJoin Us at Open Source SecurityCon Europe 2026 in Amsterdam
February 3, 2026

Join Us at Open Source SecurityCon Europe 2026 in Amsterdam

Open Source SecurityCon Europe is approaching, which means we’ll be gathering again in Amsterdam this spring for one of the most focused, practitioner-driven events in open source security. Save your…

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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