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Part: III Networking > Network Security

Hour 15. Network Security

A long time ago (relatively speaking—a long time in computer years), you didn't have to worry much about the security of your computer system. Basically, your computer was as secure as the building it was housed in. If someone couldn't get into the building, he couldn't get access to your computer and whatever information was stored on it.

However, this all changed, of course, with the advent of networks, and with the advent of the Internet in particular. These days, your computer can be locked in a vault and still be vulnerable to outside intruders if it has a network connection. If it has an Internet connection, it can be vulnerable to attack by someone on the other side of the world. Because of this, network security is more important now then ever before.


  

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