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@ossf

Open Source Security Foundation (OpenSSF)

OpenSSF is a community of software developers and security engineers who are working together to secure open source software for the greater public good.
OpenSSF Logo

OpenSSF is committed to working both upstream and with existing communities to advance open source security for all.

We foster collaboration, establish best practices, and develop innovative solutions to secure the development, maintenance, and consumption of open source software. OpenSSF is part of the nonprofit Linux Foundation.

Working Groups:

For any questions, concerns, reports, etc., please email operations@openssf.org.

Get Involved

Membership

We encourage all individual contributors to work with their employers to become members. We aim to grow an active, healthy community of contributors, reviewers, and code owners. Learn more about the requirements and responsibilities of membership in our Membership page or see current members.

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  1. wg-best-practices-os-developers wg-best-practices-os-developers Public

    The Best Practices for OSS Developers working group is dedicated to raising awareness and education of secure code best practices for open source developers.

    JavaScript 1.1k 205

  2. ai-ml-security ai-ml-security Public

    Working Group on Artificial Intelligence and Machine Learning (AI/ML) Security

    189 30

  3. wg-securing-critical-projects wg-securing-critical-projects Public archive

    Helping allocate resources to secure the critical open source projects we all depend on.

    411 62

  4. wg-securing-software-repos wg-securing-software-repos Public

    OpenSSF Working Group on Securing Software Repositories

    134 33

  5. tac tac Public

    Technical Advisory Council

    152 84

  6. foundation foundation Public

    OpenSSF Governance and Legal Docs

    75 19

Repositories

Showing 10 of 81 repositories
  • best-practices-badge Public

    🏆Open Source Security Foundation (OpenSSF) Best Practices Badge (formerly Core Infrastructure Initiative (CII) Best Practices Badge)

    ossf/best-practices-badge's past year of commit activity
    Ruby 1,360 MIT 233 215 10 Updated Sep 13, 2026
  • ossf/ossf-landscape's past year of commit activity
    33 Apache-2.0 29 0 2 Updated Sep 12, 2026
  • malicious-packages Public

    A repository of reports of malicious packages identified in Open Source package repositories, consumable via the Open Source Vulnerability (OSV) format.

    ossf/malicious-packages's past year of commit activity
    Go 608 Apache-2.0 138 33 15 Updated Sep 12, 2026
  • security-insights Public

    Machine-readable specification for the attestation of security-relevant data.

    ossf/security-insights's past year of commit activity
    Go 81 20 7 0 Updated Sep 12, 2026
  • tac Public

    Technical Advisory Council

    ossf/tac's past year of commit activity
    152 84 44 (5 issues need help) 13 Updated Sep 12, 2026
  • wg-supply-chain-integrity Public

    Our objective is to enable open source maintainers, contributors and end-users to understand and make decisions on the provenance of the code they maintain, produce and use.

    ossf/wg-supply-chain-integrity's past year of commit activity
    208 Apache-2.0 40 8 1 Updated Sep 12, 2026
  • community Public
    ossf/community's past year of commit activity
    SCSS 11 CC-BY-4.0 8 2 2 Updated Sep 11, 2026
  • foundation Public

    OpenSSF Governance and Legal Docs

    ossf/foundation's past year of commit activity
    75 Apache-2.0 19 0 0 Updated Sep 11, 2026
  • scorecard-action Public

    Official GitHub Action for OpenSSF Scorecard.

    ossf/scorecard-action's past year of commit activity
    Go 417 Apache-2.0 89 35 10 Updated Sep 11, 2026
  • scorecard-infra Public

    OpenSSF Scorecard infrastructure

    ossf/scorecard-infra's past year of commit activity
    Go 2 Apache-2.0 2 13 9 Updated Sep 11, 2026