the daily del.icio.us Posted on 9/29/2006 | by smikwily OPHCrack – XP Password Cracker Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman’s original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds. (tags: windows password software Crack Tools security @Download)