We are using the Have I Been Pwned (HIBP) service for detecting leaked or compromised secrets, like passwords.
If you get a warning about it, it means that you are using secrets in your configuration which have been leaked and are publicly known. It is strongly advised to change these secrets with a more secure alternative as soon as possible.
Please note; this feature does not send out your secrets to check this. Your secrets and privacy is guaranteed by a K-Anonymity. Your secrets are hashed, the first 5 characters of the hash result are used to query Have I Been Pwned. Have I Been Pwned returns the results of possible password hashes that match, we check the last part of the password hash against this list locally.