Comodo Firewall
Comodo Firewall

Best firewall

According to tests and reviews, the best firewall money can buy is free. Comodo Firewall successfully withstands the toughest testing and is judged by most reviewers to be versatile enough to serve the needs of expert users and those with modest computer skills. The firewall is also included as part of the various Comodo Internet Security suites, which include additional security features such as an antivirus program, but opinions about these are mixed. The major knock against Comodo Firewall is that is requires users to manually choose whether to block or allow many programs; other programs handle this automatically.
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Free Estimated Price
Kaspersky Internet Security 2012
Kaspersky Internet Security 2012

Best security suite/firewall combination

Experts sing the praises of Kaspersky Internet Security 2012's excellent antivirus capabilities, but its firewall is also top-notch. The usability of the redesigned suite is another plus, as evidenced by user and expert feedback. Unlike Comodo and many other standalone firewalls, Kaspersky rarely asks users for security input, instead relying on Kaspersky's extensive security database. However, it also distinguishes itself in a less positive way by failing to stealth open ports. Unstealthed ports can be viewed by attackers. Experts report, however, that Kaspersky's firewall defense is virtually impenetrable and difficult to circumvent.
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Hands Off!
Hands Off!

Best Mac firewall

Though not every expert says a third-party firewall is needed to supplement the one built into the Mac OS, those who do point to Hands Off! as the best choice. Reviewers say the streamlined, user-friendly software keeps a low profile while protecting users from outbound and inbound threats. Hands Off! can also prevent applications from fiddling with files stored on your Mac. Another nice feature is the network monitor, which tracks programs that access your network.
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*Est. $25 Estimated Price
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