When the canary you took into the mine suddenly looks strange, you run.
Maybe the canary didn't actually have a problem. Maybe it died due to natural causes and the mine was perfectly safe. There might be reasonable explanations for the canary's behavior that would be obvious if you took the time to perform minimal investigation. None of that matters, because the entire purpose of taking a canary down into a mine is to have an early warning signal that might save your life.
We cannot know the current situation of someone who publishes a warrant canary. What we do know that while any change might be a simple mistake, it could also be an attempt to announce some sort of warning. Just like taking the bird down into a mine, the early warning system might not be useful if you waste time arguing about it.
Also, can we have a standard API for this type of thing?
From the site:
- a declaration that, up to that point, no warrants have been served, nor have any searches or seizures taken place.
Any such declaration disappeared at some point. The lack of a positive statement that the canary is valid (and everything's ok) is obviously deliberate, since the news items are both updated and signed.
That's about as clear of an indication as possible given the circumstances. Even this was possibly risky, even though it shouldn't be. Respect their integrity.