Are there any instances anyone knows of in which a warrant canary has been found to violate antidisclosure law?

(Australia apparently outlaws the practice, see: <https://boingboing.net/2015/03/26/australia-outlaws-warrant-...>.)

Any such case seems likely to wind up in something like the secret FISA court.

https://en.wikipedia.org/wiki/United_States_Foreign_Intellig...