 Between 2010 and 2012 the UK intelligence community initiated an investigation aimed at Huawei, the supplier of BT's new fibre infrastructure of which BT Openreach is a part, with increasing urgency after the US, Canada and Australia prevented the company from operating in their countries.Although BT had notified the UK government in 2003 of Huawei's interest in their £10 billion network upgrade contract, what they did not do was raise the security implications as BT failed to explain that the Chinese company would have unfettered access to critical infrastructure.On 16 December 2012 David Cameron was supplied with a in-depth report indicating that the intelligence services had very grave doubts regarding Huawei, in that the UK governmental, military, business community and private citizen's privacy may be under serious threat.