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Computing Terms

Firewall -

In the most basic sense, a firewall protects a computer from unauthorized internet access.

If you have a constant connection to the internet (i.e. non-dialup), you can be "hacked" into if you don't have some kind of firewall protection (ok, you can still get hacked into even with a firewall or regular dial up, but it's harder). It's mostly larger companies with networks connected to the internet who need firewalls.

However, with the proliferation of cable and DSL connections, lots of residential customers are finding they need some form of firewall protection as well. In fact, I recently read that hack attacks on these residential connections is on the rise and may gain the unfortunate prize of being the most common hacking target in the very near future.

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