A recent US Government study concluded that even the best filters could only filter/block 91% of adult websites, leaving 9% or more unfiltered. Those numbers become more important when you realize that 9% of the available Internet pornography could be as many as 100 million pornographic images and videos!

And worse, if the individual in front of the computer knows how to bypass it or deactivate it, well then the filter's performance drops to 0%.

Pornography-detection tools (software) allow you to scan a computer system and see what the filter missed. If a child or spouse is using an anonymous proxy or some other application to sneak a peak at adult content--or if they are simply using a CD-Rom, external hard drive, or thumb drive to hide porn on your computer a program such as SurfRecon will find it. You can click here (internet filters) to get more information on how SurfRecon works and how to get it.