Private keys are supposed to be, well… private. If a key is out there “in the wild”, anyone could have it. Anyone could be using it to compromise your security.
Want to know if a private key is in the wild? This site is for you. We collect private keys, and provide you with proof they’re compromised, so you can know when a key is untrustworthy.
To see whether a key is in our database, look it up.
If you have a compromised key, please submit it.
Pwnedkeys also operates the pwnedkeys Revokinator, an automated service that requests revocation of WebPKI certificates that use known-compromised keys.