7.6.10 Meeting Teardown

At the end of the meeting, or when leaving a meeting early, all participants should discard all meeting keys, all keys derived from those meeting keys, and the ephemeral DH private keys ski they generated when they joined. The intent here is to provide forward secrecy. That is, if an adversary can record all encrypted messages relayed between Zoom clients during the meeting, and can later recover all keys stored on a user’s device after the meeting ends, they still cannot recover the meeting data.