Cracking a password


A cracker is a peice of software that cracks the password of the IP address you're tring to hack into. 

Cracker strength

Generally, the "stronger" the cracker (which is basically read as "the higher the level of the cracker"), then the time it takes to crack a password would be shorter. Additionally, the cracker also becomes more and more accurate the higher the level it is (i.e. less "Failed... Try again" screens).