PC-Welt features a review of six free firewalls with ZoneAlarm® resulting as the test winner. The editorial department's conclusion: The firewall presents very good security performance.

In a very detailed review of ten security suites, ZoneAlarm® Internet Security Suite 6.5 features the recommended firewall. The suite is said to have very good protection and manages to effectively protect itself from unauthorized termination.

In a large review of seven firewalls, PC Praxis thorougly conducted security as well as performance tests. ZoneAlarm® Pro clearly won the competition and was awarded with the winner logo. "A very secure, flexible and convenient firewall with numerous protection functions that absolutely make sense."

Once a year, the editorial department of CHIP online selects the best download products. Their conclusion with regard to ZoneAlarm®: "Outstanding freeware which protects effectively against hackers. A large advantage compared to other firewall programs is the particularly simple handling and the "stealth" function, which makes the PC actually invisible in the Internet. Version 6 offers a preventing defense mechanism against Spyware."

ProtectStar Incorporated, an independent IT security expert active worldwide, awarded - for the first time - a personal firewall with the ProtectStar Award. ZoneAlarm® Pro 6.0 was tested over several days with the following conclusion: "ZoneAlarm® Pro is a technically well-engineered and user-friendly security software. Users get a professional firewall which is worth every €-Cent."

In a very detailed and thorough review against four other firewalls, ZoneAlarm® managed to prevail. The evaluation of the reviewers: "Clearly arranged, secure, informative, suitable for inexperienced users."

PC Praxis conducted a direct comparison between ZoneAlarm® Internet Security Suite and AntiVirenKit Internet Security 2005. ZoneAlarm Internet Security Suite won this comparison and was recommended by PC Praxis' readers. The conclusion of the PC Praxis editorial department: ZoneAlarm® Internet Security Suite offers universal protection for all programs, a standardized interface and the possibility to monitor Instant Messaging. ZoneAlarm® Internet Security Suite is a very good security tool with a great price-performance-ratio.