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- Add general descriptions - Link to Qubes Security Team - Add headings for lists - Normalize heading syntax
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Qubes Canaries
A Qubes Canary is a security announcement periodically issued by the Qubes Security Team through the Qubes 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.
The name originates from the practice of in which miners would bring caged canaries into coal mines. If the level of methane gas in the mine reached a dangerous level, the canary would die, indicating to miners that they should evacuate. See Wikipedia: warrant canary for more information, but bear in mind that Qubes canaries are not strictly limited to legal warrants.