Shane On Information Technology: IT Security Each Day Keeps The Doctor Away!
There are a number of ways that viruses can get into your network: E-mail is one of the most common, as are malicious Web sites. They can also infect your network via external media, like floppy disks and burned CDs. Rounding out the list are unprotected Internet connections, such as your DSL or T1 lines and even wireless connections. So, you must be prepared to guard all of those avenues.
There are a number of different types of viruses. A Trojan Horse is a destructive program that pretends to be a harmless or fun program. Worms are programs that replicate themselves over computer networks and usually perform malicious actions. Viruses are programs that are loaded onto your computer without your knowledge and run against your wishes.