Robert Hannigan has resigned as director of GCHQ for personal reasons, the British electronic surveillance agency has announced.
Mr Hannigan was director general of defence and intelligence at the Foreign Office before taking over the leadership of GCHQ in 2014.
In a letter to the foreign secretary, he said he was proud of the work he had done and “how many lives have been saved in this country and overseas by the work of GCHQ”.
But he said the 20 years working in public service roles had “demanded a great deal of my ever patient and understanding family”, adding that “now is the right time for a change in direction”.
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