I've been remiss in letting you know about new blogs that are no longer new. So, let's catch up.
Did you know that WAF stands for web application firewall? Acronyms can be confusing, and as you will see, it took me a while to figure out why we at SecureIQLab are testing them. You you check out WAF or Gaffe: Comparing Cloud Web Application Firewalls you'll understand my confusion. That said, they are an important security technology and SecureIQLab is about to release our test results. A quick read of the blog will give you some information about the security threats that WAFs are supposed to protect you from.
Incidentally, in the early days of firewalls, some people tried to explain them using the firewall in a car as an analogy. Now a days, in the age of "intelligent" vehicles, it might be getting close to time for automotive WAFs, but that isn't part of the blog.