So you've got a software firewall in any computer you're now using.

And the other problem is you can't ever really trust a software firewall running in the computer that you're protecting.

I've used it in the past to evaluate lots of different personal software firewalls.

So, and you think that probably it's not a bad idea to run a software firewall.

You might want to have a software firewall, as well.

I think still then we were talking about software firewalls.

Often, these offer a better performance than software firewalls, but they are also more expensive.

And if you wanted an additional layer of protection, add a software firewall.

So software firewalls, while present, aren't giving us any protection.

In this way, a software firewall can learn which types of information you want to allow into your network.