I am not affiliated with this event and nothing I write is authoritative for it.

Originally posted by details
If you were at DEF CON last year,you saw the first ever Mission SE Impossible. This year, we have made it bigger, badder and even harder! If you dare, we will pit you against the clock and test your ability to think critically in front of a crowd, use your l33t SE skills, and be the first to crack into the safe to win the second annual Mission SE Impossible! Runs Thursday only, and sign ups are onsite.
For information see: http://www.social-engineer.org/social-engineer-village/