Source: West Coast Labs/Netintelligence

In this Technology Report, West Coast Labs has tested the effectiveness of leading content filtering systems under strictly controlled laboratory conditions to ensure fairness. The tests were based on how well the products would perform in enforcing a hypothetical, but typical, Acceptable Usage Policy for email and the internet - devised by the West Coast team.

When companies provide staff with personal computers they know they are equipping them with a tool that can be used for both good and ill. Most acknowledge that the office PC will be used for the occasional personal email, and possibly some online shopping or holiday-booking during lunchtimes.

But there are limits, and the PC, a tool that is meant to deliver efficiency, can rapidly turn into a device for whiling away office hours in games, chatting to friends and relatives, and sometimes more sinister activities, such as accessing pornographic websites. Numerous surveys have confirmed this to be the case. For instance an online poll of 10,000 American office workers last July, revealed that they spent more than two hours a day surfing the web for non-business related information, or sending personal emails.

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