According to findings from the 2006 Department of Trade and Industry's (DTI) biennial Information Security Breaches Survey, workers in the UK still abuse net access, despite improvements over the last two years. This abuse includes accessing inappropriate websites, as well as mucking about surfing the net instead of getting on with work.

A greater number of firms have an acceptable usage for internet access compared to the last DTI security survey two years ago. Two thirds (63 per cent) of all companies and 89 per cent of large firms have an acceptable usage policy, far more than have an overall information security policy.

Chris Potter, the PricewaterhouseCoopers partner leading the survey, said: "Where businesses have an acceptable usage policy in place, they are nearly three times as likely to detect misuse as those that don't. It is very hard to police this area if you haven't agreed what an acceptable usage policy is."