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| Hoax call to David Cameron prompts security review | Hoax call to David Cameron prompts security review |
| (40 minutes later) | |
| Downing Street says it is to review security procedures after a hoax caller was put through to Prime Minister David Cameron. | |
| Number 10 said the caller claimed to be Robert Hannigan, director of government monitoring agency GCHQ. | Number 10 said the caller claimed to be Robert Hannigan, director of government monitoring agency GCHQ. |
| Mr Cameron ended the call when it became clear it was a hoax and no sensitive information was disclosed. | |
| GCHQ is also carrying out a review after Mr Hannigan's mobile phone number was revealed in a separate call. | GCHQ is also carrying out a review after Mr Hannigan's mobile phone number was revealed in a separate call. |
| The contact number given out for the GCHQ head is thought to have been for an unclassified phone rather than one of the secure lines used for sensitive communications. | The contact number given out for the GCHQ head is thought to have been for an unclassified phone rather than one of the secure lines used for sensitive communications. |
| And although the call to Mr Cameron was made to an official mobile, the conversation was understood to have been "quite brief". | And although the call to Mr Cameron was made to an official mobile, the conversation was understood to have been "quite brief". |
| A government spokeswoman said a notice has gone out to all departments to be on the alert for hoax calls following the incident. | A government spokeswoman said a notice has gone out to all departments to be on the alert for hoax calls following the incident. |
| She said: "The prime minister ended the call when it became clear it was a hoax. In neither instance was sensitive information disclosed. | She said: "The prime minister ended the call when it became clear it was a hoax. In neither instance was sensitive information disclosed. |
| "Both GCHQ and Number 10 take security seriously and both are currently reviewing procedures following these hoax calls to ensure that the government learns any lessons from this incident." | "Both GCHQ and Number 10 take security seriously and both are currently reviewing procedures following these hoax calls to ensure that the government learns any lessons from this incident." |