The "exponential wall" means the longer your password is the less likely it is to fall. A 10 letter password is in a 26^10 keyspace. Add one more letter and it

The "exponential wall" means the longer your password is the less likely it is to fall. A 10 letter password is in a 26^10 keyspace. Add one more letter and it takes 10 times longer to crack -- assuming of course your password is not part of some of some combination of short common dictionary words. What I find really interesting is that the same kind of attack vector (combinations of common words) is being used as the basis for some really sophisticated search techniques in Artificial Intelligence. I remember reading an abstract a few years ago from a student of Rich Korf @ UCLA. In it the authors use this kind of approach to attack the 24-Sliding-Tile Puzzle. Here's a link; it's pretty cool! http://www.aaai.org/ocs/index.php/AAAI/AAAI11/paper/view/3496/4146 http://www.aaai.org/ocs/index.php/AAAI/AAAI11/paper/view/349...