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Can you keep a secret? Meet the autistic MI5 intelligence officer

Do you have what it takes to be a spy? Video, 00:06:29Do you have what it takes to be a spy?

MI5 does not have to confirm abusive man was a spy

Recordings 'chilling expression of terrorist intent'

Recordings are 'republican pub talk' says lawyer

1993: MI5 goes public for first time. Video, 00:03:381993: MI5 goes public for first time

1987: Australian court lifts ban on MI5 memoirs. Video, 00:01:481987: Australian court lifts ban on MI5 memoirs

1991: MI5 head is a woman. Video, 00:02:181991: MI5 head is a woman

China’s spy threat is growing, but the West has struggled to keep up

Foreign states targeting UK universities, MI5 warns

Hundreds of Manchester bomb survivors to sue MI5

NI terrorism threat level reduced to substantial

Grief and pain 30 years after Chinook disaster

Spycatcher memoir left Margaret Thatcher ‘shattered’

Fears UK not ready for deepfake general election

Inside the secret complex making gadgets for UK spies

MI5 head warns of 'epic scale' of Chinese espionage

MI5 fears Israel-Gaza war could fuel radicalisation

‘Chinese spy’ targeted thousands over LinkedIn

Labour outlines law to ban AI terror threat

GCHQ appoints its first female chief

MI5 'negligence' claim over Manchester attack

How do terrorism threat levels work?