Software security
If you are serious about making your software secure, I would highly recommend you to read the book, The Security Development Lifecycle by Michael Howard.
I outlined a process which is very easy to follow which help you to make your application securer.
You could buy the book from Amazon, and here is the link
http://www.amazon.com/Security-Development-Lifecycle-Michael-Howard/dp/0735622140/ref=cm_lmf_tit_14_rsrsrs0/002-9546368-9929624
