Abstract: A computer implemented method, data processing system and computer program product are disclosed for password expiration based on vulnerability detection. A request for a password is received during re-activation of a first account that belongs to a particular user. A test password is compared to a previously created password that belongs to the particular user to determine if a match occurred. Responsive to determining that there is a match, a second account that belongs to the particular user with respect to the match is expired.

Abstract: Illustrative embodiments provide a computer implemented method, a data processing system and a computer program product for password expiration based on vulnerability detection. The computer implemented method comprises receiving a request for a password after re-activating a user account and requesting a password generator, to create a hashed password. The method further comprises comparing the hashed password to a previously created password of a user, to determine a match entry. Responsive to determining a match entry, expiring an account of the user with respect to the match entry.