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Register for OpenSSF Community Day Europe 2025

August 28, 2025 | Amsterdam, The Netherlands

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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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Meet Our Members

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

Practical Guide for Building Robust AI/ML Pipeline Security

Practical Guide for Building Robust AI/ML Pipeline Security

Secure Open Source Software Vision Brief 2025

Secure Open Source Software Vision Brief 2025

2024 Annual Report cover

2024 Annual Report

Recent Blog Posts

BlogGuest BlogFrom Beginner to Builder: Understanding OpenSSF Community and Working Groups
August 8, 2025

From Beginner to Builder: Understanding OpenSSF Community and Working Groups

The Open Source Security Foundation (OpenSSF) serves as the global hub for collaborative work on securing the software supply chain. Whether you’re an open-source maintainer, a security engineer, a student,…
BlogOpenSSF at DEF CON 33: AI Cyber Challenge (AIxCC), MLSecOps, and Securing Critical Infrastructure
August 6, 2025

OpenSSF at DEF CON 33: AI Cyber Challenge (AIxCC), MLSecOps, and Securing Critical Infrastructure

By Jeff Diecks The OpenSSF team will be attending DEF CON 33, where the winners of the AI Cyber Challenge (AIxCC) will be announced. We will also host a panel…
MLSecOps WhitepaperBlogGuest BlogVisualizing Secure MLOps (MLSecOps): A Practical Guide for Building Robust AI/ML Pipeline Security
August 5, 2025

Visualizing Secure MLOps (MLSecOps): A Practical Guide for Building Robust AI/ML Pipeline Security

By Sarah Evans and Andrey Shorov The world of technology is constantly evolving, and with the rise of Artificial Intelligence (AI) and Machine Learning (ML), the demand for robust security…

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.

Explore Membership in OpenSSF