According to IT security experts, cybercrime is now a profit-driven, multi-billion pound underground economy.
This industry mirrors the legitimate economy with division of labour, job specialisation, a global market and an efficient supply chain.
Berners-Lee said new steps are needed to protect internet users from malware, and suggested ISPs should cut off users with infected machines until they are cleaned up
Berners-Lee counts himself as a victim of online crime, having once purchased goods from a bogus online shopping site.
The World Wide Web celebrates 20 years this month. It was in March 1989 that Berners-Lee unveiled the concept while working at Cern in Geneva.