@idahoj said:
Khai hit it on the head. I too ran networks for years and was in a constant running battle to screen, filter and block not only porn, but a lot of other junk off the 'net. Same for email. No sooner would I get filters in place, then the scammers, spammers and script kiddies would find new ways of getting around them.
The best offense to this kind of junk is to make a personal stance to just stay away from it. That, and keep a good virus and malware scanner running in the background ...
Cheers.
One of my freelance jobs took me away for 3 days every other week to the offices of a major international company.
I used webmail so that I could still retrieve my email. Then the company decided to block access to webmail for security reasons. I'm no hacker, but it took me less than a minute to get round their first blocks (which were based on using a list to block specific sites.)
Then they got clever, and implemented a system that blocked all webmail, regardless of address. It took me just 10 minutes to get round that one.
So yeah, it is probably true that people who really want to defeat internet security can do. That does not make it a worthless exercise to implement systems that help to cut down accidental or casual access to porn sites by your youngsters.