Password Cracking, from Vince Fulco
This may be elementary for some but I happened to watch a video from October's Defcon conference last night and a presenter made an extremely persuasive argument for two factor password authentication. Gmail gives it away for free and I have been using for 6 months without a hitch. Something for list members to seriously consider in their business practices. While its a little irreverent, as defcon folks can be, the security pro reminded listeners multiple times that the Chinese are developing some of the most powerful systems in the world and even 6-8 digit passwords are not safe.