A warrant canary states "We have not complied with any subpoenas that disclosed user data". All that has to happen upon complying with a warrant that requires u

A warrant canary states "We have not complied with any subpoenas that disclosed user data". All that has to happen upon complying with a warrant that requires user data is to remove / not republish the canary. The idea being that a gag order cannot force you to speak, only prohibit you from speaking. Thus, a gag-order cannot force you to continue publishing a canary. Often, canaries have an 'expiry date' after which they will be republished. This is to avoid 'removing a document' as being interpreted as speech, and thus prohibited by gag order. Now spideroak had a canary with an expiration of 1 aug. They did not republish; and 3 days later, gave an explanation why. In this explanation they state they will switch to a slightly different, non-cryptographically signed document that is much like a warrant canary. The 3 day gap is most notable here. Spideroak states that the cryptographic signing wasn't useful because you need to trust the signers, who are the same people that publish on the website.