All computers connected to the Internet are continuously being probed and scanned for vulnerabilities that might allow a virus, worm, or hacker to cause damage or take control. Firewalls can block unwanted network traffic that you don’t need or that could pose a threat. Running a firewall on your desktop or laptop computer is one of the best things you can do to protect your computer. It is just as important as running anti-virus software.
CIT provides firewall recommendations for Windows and Macintosh.
