Two new security posts

I just finished two posts on my Security blog. The first post talks about authentication and the second post talks about biometrics, one of four ways to authenticate in today's digital world.

Authentication post:
http://security.saitoblog.com/2010/06/authentication.html

Biometrics post:
http://security.saitoblog.com/2010/06/biometrics.html

Hope you enjoy them and find them informative. Your comments are always welcome.