All a waste of time and energy. Anyone can get around any filter in any environment known to date. Don’t assume this is only said for computer experts or IT guys. The yetzer Harah is the smartest one around – and last I checked he was pretty active …
K9 – 20 seconds
Kaspersky – 60 seconds
……………..
Regardless, if you have WiFi on your pc/smartphone (and who doesn’t), NOTHING is reliable. A Smartphone backup/reset, or a simple dummy proof virtual machine is all it takes. There is nothing to combat this plague in existence – outside of divorcing technology. Accept it.