I don't see any value in canaries. I tend to agree with Moxie [1] and so do the lawyers at my place of work. A single NSL [2] can compel a company to do pretty much anything, including updating the canary despite being a violation of the US constitution [3]. Business leaders will talk tough to inspire confidence, but will back down quickly when they receive a NSL.<p>[1] - <a href="https://web.archive.org/web/20141027143819/https://github.com/WhisperSystems/whispersystems.org/issues/34" rel="nofollow">https://web.archive.org/web/20141027143819/https://github.co...</a><p>[2] - <a href="https://en.wikipedia.org/wiki/National_security_letter" rel="nofollow">https://en.wikipedia.org/wiki/National_security_letter</a><p>[3] - <a href="https://en.wikipedia.org/wiki/Warrant_canary" rel="nofollow">https://en.wikipedia.org/wiki/Warrant_canary</a>