e4f953a0_www_naz_edu____IT_Glossary__Definition
[Term] Firewall [Definition] 
A firewall is a device or a software program that protects a network or computer from hacker attacks. Nazareth College has a firewall that separates our computer network from the outside world. However, it is recommended that users have a personal firewall installed on their computer to protect against viruses that may spread through the internal network. Windows XP Service Pack 2 includes a free firewall that is turned on by default.
www.naz.edu :: IT Glossary
Definition