Prime Minister hoax call leads to a review of security
A review of security procedures has been launched after a hoax caller pretending to be the director of the Government's eavesdropping agency was put through to David Cameron.
The Prime Minister hung up when it became clear it was a hoax and no sensitive information was disclosed, but the security breach at No.10 and spy station GCHQ is a major embarrassment.
A first hoax call was made to GCHQ and resulted in the disclosure of a mobile number for director Robert Hannigan, the former Northern Ireland Office political director.
A second call, purporting to be from Mr Hannigan, was then put through to the PM but the conversation is understood to have been "quite brief" before the hoax was exposed.
A Government spokeswoman said: "Following two hoax calls to Government departments today, a notice has gone out to all departments to be on the alert for such calls."