Most network security analysts are aware of password auditing tools such as Lopthcrack. Perhaps not everyone though has heard of Rainbow tables. Using Rainbow tables that have been pre-generated can dramatically decrease the amount of time it takes to crack/audit passwords. This is very much a huge step forward for both the network security analyst as well as the black hat hacker. Password audits are nothing new, but it would behoove us all to download the Rainbow tables, which at last count total 4 GB’s worth, and test our companies passwords.