A campaign to hack and jam Isis last year represented the first time that Britain has used its cyber capabilities as part of a joint military campaign, the head of the country’s electronic intelligence unit said.
Jeremy Fleming, the head of GCHQ, said cyber attacks had “made a significant contribution” to the war against the Islamist extremist group.
“This is the first time the UK has systematically and persistently degraded an adversary’s online efforts as part of a wider military campaign,” he said, in a speech to the CyberUK conference in Manchester.
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