Personal Firewall Software

ALSO CALLED: Desktop Firewall Software
DEFINITION: A personal firewall (sometimes called a desktop firewall) is a softwareapplication used to protect a single Internet-connected computer from intruders. Personal firewall protection is especially useful for users with "always-on" connections such as DSL or cable modem. Such connections use a static IP address that makes them especially vulnerable to potential hackers. Often compared to anti-virus  … 
Definition continues below.

PERSONAL FIREWALL SOFTWARE DEFINITION (continued): … A personal firewall (sometimes called a desktop firewall) is a softwareapplication used to protect a single Internet-connected computer from intruders. Personal firewall protection is especially useful for users with "always-on" connections such as DSL or cable modem. Such connections use a static IP address that makes them especially vulnerable to potential hackers. Often compared to anti-virus applications, personal firewallswork in the background at the device (link layer) level to protect theintegrity of the system from malicious computer code by controlling Internetconnections to and from a user's computer, filtering inbound and outboundtraffic, and alerting the user to attempted intrusions.
Personal Firewall Software definition sponsored by SearchMidmarketSecurity.com, powered by WhatIs.com an online computer dictionary