Why not a whitelist of users who can make changes to code flagged as security sensitive (or more specifically: security-authentication)? Edit: digging through

Why not a whitelist of users who can make changes to code flagged as security sensitive (or more specifically: security-authentication)? Edit: digging through Reddit comments more suggests the repo owner may have been hacked as commit blame shows his user made the changes. In this case: a Blacklist wouldn't help and my suggestion may already be in place.