In this presentation I talked about how Windows user account passwords can be cracked using methods described in Philippe Oechslin's paper "Making a Faster Cryptanalytic Time-Memory Trade-Off" and demonstrated the ideas by stealing hashes using fgdump or Ophcrack and using Rainbow Tables (Cain with RainbowCrack) to actually crack the passwords of students present at the talk. There is some interesting stuff about secure passwords along with bunch of other things.