May 26, 2018
Check whether password is known to have been exposed in data breaches
Pwned Passwords are hundreds of millions of real world passwords exposed in data breaches. This exposure makes them unsuitable for ongoing use as they are at much greater risk of being used to take over other accounts.
This script uses a downloaded copy of the pwned passwort hashes available from https//haveibeenpwned.com/Passwords/ to allow passwords to be locally checked, whether they are known to have been obtained in a data breach and therefore should not be used.