In addition to anti-virus software, firewall software can prevent unauthorized software running on your computer. This software can be purchased for approximately $30.
McAfee, Norton, and Trend micro (PCCillin) offer firewall software that works in conjunction with their anti-virus software.
ZoneLabs offers its ZoneAlarm firewall for FREE. It also offers a more fully functioned product called ZoneAlarmPro for purchase.
- McAfee: http://www.mcafee.com
- Norton: http://www.norton.com
- PCCillin: http://www.trendmicro.com/en/products/desktop/pc-cillin/evaluate/overview.htm
- ZoneLabs: http://www.zonelabs.com