The current password policy module can lock folks out after some
configurable number of failed attempts. The module currently does not
differentiate between a user failing with the same wrong password a
bunch of times versus a crack attempt where someone tries multiple
different wrong passwords. Are there any modules that take into
account if the same password is being used a bunch of times or if
multiple different passwords are failing? Could this be a useful
feature worth requesting (if it doesn't exist already)?