http://technet.microsoft.com/en-us/library/cc722487.aspx

Here at the Microsoft Security Response Center, we investigate
thousands of security reports every year. In some cases, we find that a
report describes a bona fide security vulnerability resulting from a
flaw in one of our products; when this happens, we develop a patch as
quickly as possible to correct the error. (See “A Tour of the Microsoft
Security Response Center”). In other cases, the reported problems
simply result from a mistake someone made in using the product. But
many fall in between. They discuss real security problems, but the
problems don’t result from product flaws. Over the years, we’ve
developed a list of issues like these, that we call the 10 Immutable
Laws of Security.

Don’t hold your breath waiting for
a patch that will protect you from the issues we’ll discuss below. It
isn’t possible for Microsoft–or any software vendor–to “fix” them,
because they result from the way computers work. But don’t abandon all
hope yet–sound judgment is the key to protecting yourself against these
issues, and if you keep them in mind, you can significantly improve the
security of your systems.

Read full article at this link – http://technet.microsoft.com/en-us/library/cc722487.aspx