Microsoft released a template for applying its Security Development Lifecycle (SDL) methodology to agile software development projects built with the Visual Studio development environment.

http://www.infoworld.com/d/developer-world/microsoft-links-security-guidelines-agile-development-738
http://www.microsoft.com/downloads/details.aspx?FamilyID=c4b44860-cfba-494a-ba43-13c4aecf86af&displaylang=en

-Urs