This is pretty near:
Detect breaches with Canary credit cards!
TL;DR;
Today we’re releasing a new Canarytoken type: actual credit cards!
1. Head over to canarytokens.org;
2. We give you a valid credit card (number, expiration, and CVC);
3. If anyone ever attempts to use that card you’ll be notified.
https://blog.thinkst.com/2023/01/swipe-right-on-our-new-credit-card-tokens.html

