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Pros and Cons
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Features
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Automatic updates
Antivirus protection
Anti-spyware protection
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Best firewall
Pros: Easy to use, easy on system resources, excellent protection, advanced features.
Cons: Only slightly better than some free firewalls, pop-up screens bother some users.
not avail.Windows XP and Vista (32-bit only), 512 MB RAM, 20 MB disk spaceYesNoYesYesKeylogger detection, mail filter, banking mode, DNS and hosts checker -
Best free firewallPros: Free, excellent firewall, minimal system drag.Cons: Poor anti-spyware and antivirus components, obtrusive Defense+ system monitor, harder to use than some other firewalls.
not avail.Windows XP or Vista (32-bit and 64-bit), Internet Explorer 5.1 or higher, 64 MB RAM, 35 MB disk space (32-bit); 64 MB disk space (64-bit)YesYesYesNoDefense+ system monitor, SafeSurf toolbar -
Best security-suite firewallPros: Top-quality firewall, strong antivirus protection, easier to use for novices.Cons: Advanced features can be challenging to use, fewer types of protection than other security suites.
not avail.Windows XP or Vista (32-bit and 64-bit), Windows 2000 (SP3 and above, Windows Server 2003 or 2008; 256 MB RAM, 100 MB disk space.YesYesYesYesAnti-spam, keylogger detection, system monitor, entertainment mode -
Best Mac firewallPros: Covers both inbound and outbound threats, network monitor displays programs accessing the network, easy to use.Cons: Could be overkill for many Mac users, prompts and warnings annoy some users.
not avail.Mac OS X 10.4 or laterNoNoNoNoNetwork monitor
