Internet ad tracking system will put a 'spy camera' in the homes of millions, warns founder of the web

The inventor of the world wide web has launched a damning attack on plans to spy on the internet browsing habits of millions of households.

Sir Tim Berners-Lee warned such technology was even more sinister than allowing companies to install TV cameras in our homes, and said the details revealed could be used by stalkers or foreign agents wanting to blackmail British politicians.