WatchGuard XCS-770 review
WatchGuard makes a big play for the web and message content security market with its new XCS appliance family. In this review we see how the mid-range XCS-770 stands up.
WatchGuard’s new XCS appliances deliver an impressive range of data protection and content security features. Its anti-spam and web filtering capabilities are extremely good and the deep scanning technologies allow email usage to be closely controlled. Our only issues are that the web interface could be more intuitive and we can’t quite see the point of the transparent mode.

The policy creation page presents four main headings for anti-spam and anti-virus, content control, email and web traffic. URL filtering comes under the HTTP heading and offers 54 categories to block, allow or leave undefined.
Anti-virus and anti-spyware measures are handled efficiently by Kaspersky which allows you log, reject or quarantine suspect email or web downloads and send notifications to administrators and users. A valuable feature is HTTPS scanning is included as standard and you can allow or deny this traffic at any policy level.
For the best anti-spam performance, the appliance likes to learn about what is acceptable. We used the quickest method by importing a live Outlook inbox from the web interface. Annoyingly, the appliance only supports the mbox format so we had to use Mozilla's Thunderbird to convert the PST file before we could use it.
We then left the appliance filtering live email for a week and saw some impressive results. Overall effectiveness was very good with the appliance scoring a 99.5 per cent success rate. Three spam scores are used to place suspect messages in Definite, Probable and Maybe categories and we saw no false positives with the first two scores.
However, the Maybe score threshold will almost certainly have to be increased as on the default setting we recorded a 38 per cent false positive rate. It's here that the unintuitive web interface gets in the way as these settings are difficult to find.
Get the ITPro daily newsletter
Sign up today and you will receive a free copy of our Future Focus 2025 report - the leading guidance on AI, cybersecurity and other IT challenges as per 700+ senior executives
Dave is an IT consultant and freelance journalist specialising in hands-on reviews of computer networking products covering all market sectors from small businesses to enterprises. Founder of Binary Testing Ltd – the UK’s premier independent network testing laboratory - Dave has over 45 years of experience in the IT industry.
Dave has produced many thousands of in-depth business networking product reviews from his lab which have been reproduced globally. Writing for ITPro and its sister title, PC Pro, he covers all areas of business IT infrastructure, including servers, storage, network security, data protection, cloud, infrastructure and services.
-
‘I don’t think this is on people’s radar’: AI could wipe out half of entry-level jobs in the next five years – and Anthropic CEO Dario Amodei thinks we're all burying our heads in the sand
News With AI set to hit entry-level jobs especially, some industry execs say clear warning signs are being ignored
By Ross Kelly Published
-
AI security blunders have cyber professionals scrambling
News Growing AI security incidents have cyber teams fending off an array of threats
By Emma Woollacott Published
-
Nasuni bolsters executive team with triple leadership hire
News The vendor has named a new CPO, CIO, and CISO as it looks to expand its global footprint
By Daniel Todd Published