If one was to ask a group of strangers on the street to name some of the most popular computer security tools, one of the first things that would pop into their minds is firewalls. Though other ...

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Understanding what firewalls do (and don’t do) takes just a few minutes. Learn what a firewall does to keep intruders out in A firewall is a security protocol that protects your internal network from ...

Most devices come with a host based firewall, but is it enough? Learn about this vital layer of security and how it keeps you safe. A host-based firewall is installed and run on a single device, like ...

In my last column, I sang the praises of application-layer proxy firewalls and introduced Balazs Scheidler's Zorp firewall suite, available in both commercial and free-of-charge versions. This column ...