In the past, we have highlighted Security focused articles by Jesper Johansson. He hasn't done a column lately but is back in the groove. He says:

"A while ago, I took a hiatus from writing these articles. Now I am back and I thought it would be fun to continue the snake-oil theme that we started with the security myths series and to write about some of the well-meaning things that people do for security that instead result in breaking things. Whereas the myths were high-level concepts, this series will be more technical. The objective is to help you better understand some of the things we do to provide security, and how they may break things unless we are really careful in how we use them."

Check out the current article in its entirity at http://www.microsoft.com/technet/community/columns/secmgmt/sm0905.mspx.