Keeping your PC safe from hackers and virus-writing cranks is simple with Norton Internet Security 2003 (NIS 2003). The software isn't free; so, if money's tight, the no-cost version of ZoneAlarm 3.0 remains your best bet. If you're willing to spend a few pounds, however, NIS 2003 will make it worth your while. Now with intelligent intrusion detection that sniffs out suspect data transmissions (the sneaky hack popularised by Nimda and Code Red), NIS 2003 protects you from backdoor break-ins. It has also added several other security and privacy tools, which let you, for instance, map the locale of hack attacks and stop pop-up ads. For £42.54 (ex. VAT; £49.98 inc. VAT), this firewall/virus-killer combo is the best deal around.