It operates by: comparing browser requests with a list of unknown suitable URLs and then blocking access if they are not listed
It scans imcoming data and blocks it if it contains undesirable keywords or file types
it attempts to filter out or block unacceptable content based on preprogrammed parameter built in to the software
How far should this be taken?, Should we be checking up on everything our children look at?, Should we allow children to discover things for themselves? We can't hide them away from everything in the world, Do they deserve a bit of privacy when using the computer?