IMO the intro “[shared] to the respective secret scanning partner” is a bit misleading because it can be read as third parties unrelated to the secret that do secret scanning. The text later on only mentions the issuer of secrets, though.
To protect the developer community, GitHub partners with hundreds of secret scanning partners to identify leaked secrets.
GitHub works directly with industry partners like AWS, OpenAI, and Stripe to build detectors for their specific secret formats […]
GitHub notifies the secret issuer when publicly leaked secrets are found, allowing the partner to take immediate action.