3Coms OfficeConnect Internet Firewall 25 is designed for the small business with 25 or less users. It has a single LAN output and WAN input, and is the only firewall reviewed that had 10Mb/s connectivity instead of 10/100.

The DGFV338 is a combination ADSL modem/router packaged in Netgear’s traditional metal case and powered by a particularly large and heavy mains adaptor.

At first glance, not much appears to have changed from version 3. A closer look, however, reveals that the engine in version 4 has been tweaked and optimised towards a more powerfully specified product.

We knew that Outpost Personal Firewall Pro 2 would improve on its predecessor, but this version is a major upgrade. I'm not just talking about the superb revamped interface, which couples simplicity with power, but a quick look under the pretty skin confirms that this is a serious development.

A software firewall has to really stand out to succeed in the crowded market, but ZoneAlarm Pro 3.5 with Web Filtering does just that.

Feature-packed and good value, but it’s slow, has too many pop-ups and a less-than-perfect firewall.

Astaro Security Linux turns any PC with the right hardware in to a dedicated firewall and router system with minimal fuss.

Excellent value for money, but a few performance glitches.

Excellent value for money, but a few performance glitches let BitDefender down.

Spam! spam! spam! spam! . . . if it had not been for Monty Python nobody would ever have thought there was anything funny about it. With almost 50 percent of the world’s email now junk mail, offering everything from unwanted penis extensions to stockmarket tips, spam has become as big a problem as viruses.

A truly silent firewall, reduced system impact and an improved interface finally make Norton attractive.

Excellent support, but a confusing user interface and disappointing firewall let AVG down

The especially full feature set of the 7404VNOX makes it stand out from the crowd.

A best-of-breed approach to Internet security pays off. This flexible and resource-friendly suite returns to the A-List.

With the prevalence of Net connections and all the good things a connected society brings such as community, the ability to share ideas and the openness of information, comes the flipside of digital life -- hackers, spyware, viruses and spam.

With less hand-holding and a greater feeling of control and configuration, Norton is definitely geared more towards the advanced user than McAfee. Although the interface is quite different, it's undoubtedly a more professional product.

With less hand-holding and a greater feeling of control and configuration, Norton is definitely geared more towards the advanced user than McAfee. Although the interface is quite different, it's undoubtedly a more professional product.

An expensive route, but the Netgear Prosafe SRXN3205 provides the reassurance of of an SSL VPN along with a long warranty.

An absolute steal at this price – great performance and superb value make this a must for next-gen WiFi junkies

A winner on the strength of its excellent protection, coming first or equal-first in our malware and firewall test.