Johnson will defy US and allow use of Huawei, says top security adviser

Chinese firm poised to help build UK's 5G phone network despite warnings about spying

Boris Johnson is likely to approve the use of Huawei technology in the UK's new 5G network against the pleas of the US government, a former national security adviser has said.

Sir Mark Lyall Grant, who was Theresa May's national security adviser, said that the security services had repeatedly concluded over several years that they were able to mitigate any potential threats posed by the Chinese technology.