A **Qubes Canary** is a security announcement periodically issued by the [Qubes Security Team](/security/#the-qubes-security-team) through the [Qubes Security Pack](/security/pack/) consisting of several statements to the effect that the signers of the canary have not been compromised.
The idea is that, as long as signed canaries including such statements continue to be published, all is well.
However, if the canaries should suddenly cease, if one or more signers begin declining to sign them, or if the included statements change significantly without plausible explanation, then this may indicate that something has gone wrong.
See [Wikipedia: warrant canary](https://en.wikipedia.org/wiki/Warrant_canary) for more information, but bear in mind that Qubes Canaries are not strictly limited to legal warrants.
