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I believe they can't because of the legality, it would remove the secrecy of the warrant. The canary allows a company to imply they got searched without breaching the secrecy.

In this case, information got removed, which is not illegal because the information removed is not required by law.

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It's not so much that the information got removed but rather they decided to not update the message. Failure of a new update is the signal that something happened.

So if they're allowed to reveal they got searched, why the need for the canary? And if it works on a company level, why does it not work on a user level?

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