The S2C2F Project is a group working within the OpenSSF's Supply Chain Integrity Working Group formed to further develop and continuously improve the S2C2F guide which outlines and defines how to securely consume Open Source Software (OSS) dependencies into the developer’s workflow.
Added the new AUD-5 requirement per discussion here https://github.com/ossf/s2c2f/issues/17
Also added it to the known-threats table