Frequently Asked Questions - Home PC Users

I have a firewall, so I’m safe. Aren’t I?

The term firewall can mean all sorts of things. Domestic Internet routers all claim to contain a "firewall", but this usually just involves hiding computers on your network from the outside world. They're not likely to prevent any kind of attack on you, or your computer from attacking anyone else. Software firewalls, built in to Windows and other operating systems, are only as secure as the PC itself.

Proper firewalls are maintained by security experts and are continually adapted to counter current threats, but they're expensive. If I have to recommend just one for a small organisation, it would probably be Firebrick, but if you need such technology you should really have a proper assessment made.