Comment by skeeter2020

The key with a canary is that the thing you're trying to signal ensures the positive or negative signal itself, like "I will check in every 24 hours as long as everything is good, because if I'm not good I won't be able to check in.". THis is just a very thin, very simple code translation. It's like saying "if you get a request for our info, blink 3 times!"