Abstract. Nowadays, attacking the passwords is one of the most straightforward
attack vectors, which authorize access to information system.
There are numerous feasible methods, attempt to guess or crack passwords,
with a dierent methods, approaches and tools. This paper analyzes
the possibilities of using the tools and gives an example of how to
accomplish the password guesses in dierent methods with tests which
can be demonstrated together with comparison of input dictionary lists.
The overall service to the follower is to insure for the potential needs:
preventing password cracking, information security audit, password recovery,
security policy etc.