Tag Archives: firewall

Trojan Horse – Greek Myth or Computer Nemesis?

We have all heard the term Trojan Horse, but what exactly is it? A Trojan Horse is a destructive program that masquerades as a harmless application. Unlike viruses, Trojan Horses do not replicate themselves, but they can be just as destructive. One of the most dangerous examples of a Trojan is a program that promises to rid your computer of viruses but instead introduces viruses into your computer. The Trojan can be tricky. Who hasn’t been online and had an advertisement pop up claiming to be able […]

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Firewalls and Proxies

In building construction, a firewall is a structure designed to contain building fires. For example, an attic crawlspace that covers the entire length of the building would allow a fire to roar from one end of the building to the other. Breaking up the crawlspace with non-flammable walls helps to slow the spread of a fire. Network firewalls have a similar function. A firewall is a network security system, either a program or an actual device, that breaks up a network to contain viruses and hackers. Imagine […]

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