Zone Alarm is a good personal firewall with application control, which helps block open and vulnerable ports on your system, protecting against intrusions and hostile attacks. Any personal computer online is a potential target for dangerous Internet threats like Trojan horse or malicious software. Hackers usually barrage these scans or access, looking for loose systems, which can be used for targeting other online systems. As a personal firewall, Zone alarm does its job pretty well. A fully licensed version is good for home PC users.
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