Have I Been Pwned
termsecurityprivacy
Stands for: Have I Been Pwned (HIBP)
A free service that tells you whether your email or password has appeared in a known data breach.
HIBP aggregates breach dumps so anyone can check exposure without handling the raw stolen data. Its password-checking side uses a clever scheme (k-anonymity) that lets you query without revealing the password you are checking.
Also known as: HIBP, haveibeenpwned, breach check