Computer Science DQ 1 -- Security in Software

DQ 1 - Differences in software security

DQ1: Differences between Software Security, Application Security, Web Application Security and Network Security

Discussion

The idea that security is a major problem in computer security is fairly new. Many practitioners have spent lots of marketing money to coin "application security" as a moniker of choice to describe the software security space.

Question:

There are a number of reasons to be wary when confronted with application security. Discuss the differences between "Software Security," "Application Security," "Web Application Security," and "Network Security," when considering the idea of building security from within the software. 

Your Task: Your initial posting must be at least 200 words. In your posting make sure to provide substantive answers. By substantive we mean going beyond just providing an opinion; rather it means either identifying the relevancy (i.e., pros and cons) of the material and provide references as applicable.

You must provide at least three references to support your argument.