Steve Schear's original proposal for the warrant canary was per-user, and you'd actually pay to maintain/check it. https://en.wikipedia.org/wiki/Warrant_canary

Steve Schear's original proposal for the warrant canary was per-user, and you'd actually pay to maintain/check it. https://en.wikipedia.org/wiki/Warrant_canary https://en.wikipedia.org/wiki/Warrant_canary (it's somewhere in cypherpunks.venona.com but I don't know exactly which message. it's circa 1992)