what a canary token is and how it works?
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The name [“canary token”](https://canarytokens.org/generate) comes from the phrase “a canary in the coal mine,” which itself comes from the [real-world practice](https://en.wikipedia.org/wiki/Sentinel_species) of miners carrying canaries with them to detect harmful gases such as carbon monoxide. The canary would succumb first, and this would provide a warning to the miner.
Similarly, a “canary token” provides a warning to a user that some event has occurred that they’d ordinarily be unaware of. A Word canary, for example, embeds specific code into the Word document so that when the file is opened, it sends a warning to you. Otherwise, you wouldn’t know that someone had been able to access it.
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