Weaknesses Found in Personal Firewalls

Consumers protecting their PCs with personal firewalls should not feel too comfortable in their defense methods, according to a security researcher. PC protection software such as Zone Labs' ZoneAlarm and Symantec's Norton Internet Security fare well against outside attacks, but Trojan horses and worms that infect the machine can easily dodge the firewall's blocks and access the Net, said Robin Keir, chief software engineer for security services company Foundstone.