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Supply Chain Integrity WG


The objective of the Supply Chain Integrity Working Group (WG) is to provide a global community for collaborating to help individuals and organizations assess and improve the security of end-to-end supply chains for open source software.


Supply chain issues and attacks cause significant damage worldwide including lost revenue, costs of ransomware payments, costs of mitigation, denial of access to resources, reduced customer trust, and public deception. As a matter of public trust, governments are beginning to mandate actions aimed at improving the security and integrity of supply chains. The US White House Executive Order on Improving the Nation’s Cybersecurity is one such example.


We have a public email list available here:

See Google Groups for past archive:!forum/ossf-wg-developer-identity

You can also join our Slack channel at

Meetings Times

The working group meets every other Wednesday at 9 AM Pacific. The public calendar is available here:

Subscribe to the calendar for meeting details.

Meetings Notes

Meeting Notes and Agendas are available on Google Drive.



Older activities (as Digital Identity Attestation WG):


This WG is chaired by Isaac Hepworth. Melba Lopez and Jay White are co-chairs.

Working Group operations are consistent with standard operating guidelines provided by the OSSF Technical Advisory Committee TAC.

Full details of process and roles are linked from governance README.

New SCI WG Charter can be read from governance CHARTER

Antitrust Policy Notice

Linux Foundation meetings involve participation by industry competitors, and it is the intention of the Linux Foundation to conduct all of its activities in accordance with applicable antitrust and competition laws. It is therefore extremely important that attendees adhere to meeting agendas, and be aware of, and not participate in, any activities that are prohibited under applicable US state, federal or foreign antitrust and competition laws.

Examples of types of actions that are prohibited at Linux Foundation meetings and in connection with Linux Foundation activities are described in the Linux Foundation Antitrust Policy available at If you have questions about these matters, please contact your company counsel, or if you are a member of the Linux Foundation, feel free to contact Andrew Updegrove of the firm of Gesmer Updegrove LLP, which provides legal counsel to the Linux Foundation.


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.



Code of conduct

Security policy





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