How Password Crackers Work (Video)
In this nine-minute video, LiveSecurity Editor-in-Chief Scott Pinzon, CISSP, talks about the tools and techniques used by malicious hackers to crack encrypted password files. He then proceeds with a demonstration of the procedure using l0phtcrack 5 (discontinued, but can still be found here), one of the most popular commercial password cracker available on the web. If you've never seen one of these applications in action, prepare to be amazed at the speed at which they can unveil your clever passwords.
If you are interested in reading more about password cracking tools and techniques, here's a few articles we wrote that should help you learn more about the subject: