Alex Younger says 5G will make it harder to monitor Chinese telecom group’s kit

John Sawers believes both side in Brexit debate should support another plebiscite

Ukraine’s interior minister reveals link in talks with UK minister

Intelligence agencies look to invest in private sector with £85m venture capital fund

International cyber criminals pose as great a threat as Russia, says British spymaster

Poison victim admits she and her father are ‘lucky to be alive’

MI6 assisted Gaddafi regime in detention of Abdul-Hakim Belhaj and Fatima Boudchar

Judge allows chemical weapons tests on ‘heavily sedated’ pair as UK policeman recovers

Ex-double agent Sergei Skripal and woman being treated in hospital

Kremlin’s reaction to MH17 downing cited as example of misinformation campaign

Decision ends 7 decades of collaboration with BBC at Caversham Park

Surveillance watchdog hears of harvesting of social media and financial details

MPs say Reyaad Khan was a key figure in plotting Isis attacks against Britons

Detection models are showing weak spots against peripheral figures

The shadowy sector stretches from dry research to hacking and honey-trapping

Compiler of explosive claims was UK intelligence’s top Russia expert

Publisher rejects ‘possible Russian intelligence link’

Sir Richard Dearlove, former head of MI6, resigns from Cambridge Intelligence Seminar

Head of MI6 issues veiled warning about the risk posed by Russian subversion

MI6 embarks on biggest recruitment drive as digital disruption offers both threat and opportunity

The novelist is a peerless observer of human nature, including his own, writes Tony Barber

‘Proven operational case’ for tapping communications data adds support to ‘snoppers’ charter’

‘I will be with you, whatever’, memos show former PM promised George W Bush