Earlier this year it was revealed that TalkTalk were following its users around the Internet as part of the development for a new anti-malware system which could be used to block sites that could be potentially harmful to users. The scanning part of the system was compulsory and users could not opt out of having the sites they visited scanned.
The second phase of this system is now under away with trials for a limited number of customers starting in the next few weeks. Users who opt-in will be warned if the site they are about to visit is known to contain viruses or other malicious software. TalkTalk aim to try and protect their users from malicious content which can spread viruses or takeover users computers and use them for spamming.
As a network operator, the solution is good as it helps reduce virus infected computers spreading through their network and therefore will reduce the amount of malicious traffic. Users also benefit in a similar way but avoiding their computers getting infected. TalkTalk are also expected to use the system to implement a parental controls feature which will allow parents to stop their children visiting websites which they deem unsuitable. There is no firm date for a full launch, but it is expected to be in early 2011.
More details can be found in the TalkTalk Virus Alerts FAQ.