and we found that the majority of public bodies are using chinese state—owned surveillance cameras. these companies have dominated, completely dominated, the surveillance market in the uk. nobody knows how many hikvision and dahua cameras are in the uk, but big brother watch says 227 councils and 15 police forces use hikvision and 35 councils use dahua. you're talking about data on millions and millions of people that could be processed to potentially generate very detailed reports about each of us and what we do. and if that sounds hyperbolic, then you really need to understand what it is the chinese government does in terms of surveillance in its own country, against its own population. panorama can now show how security issues in some hikvision and dahua cameras can be exploited. ipvm is one of the world's leading authorities