The Latest Breaking News from GCHQ

Belfast-based Trevor Birney and Barry McCaffrey won landmark victory that PSNI’s surveillance was unlawful

In today’s newsletter: Many questions remain unanswered about the person known only as H6, but the complex relationship between China and the UK is sure to be put under the spotlight

Britain's spy agency is celebrating the festive season with a riddle wrapped in an enigma inside a mystery

The puzzle is masterminded by a team of experts who work at GCHQ

Fancy a festive challenge?

The head of the National Cyber Security Centre, Richard Horne, said the reliance on technology meant the risk from attack was greater.

Intelligence, which sees Schwimmer play an annoying spook, has hit Netflix

National Cyber Security Centre warns ‘malicious’ activity putting accounts at risk

As a childhood reader of spy novels, I acquired high expectations of the secret world. British spies would be flamboyant and exceptional Bond-types. But looking around the post-university scene, I realise that all the people I knew who became spies are dull. There was the humdrum civil service fast streamer…

The woman in charge of the secure communication channel remains implacably opposed to the ‘disease’ of surveillance – and concerned about the sharing of personal data

David Omand says pledges on nuclear deterrent shows party can be trusted ‘to stick to serious defence policy’