Move follows concerns over links to torture of detainees by foreign security services

Britain’s biggest intelligence service is rethinking its mission — and recruitment strategy

Building opposite St James’s Park station has been sold for development

Debate about approach to the Chinese telecoms group reveals tensions over security roles

Blow to US efforts to ban Chinese company from allies’ telecoms networks

MI6 head Alex Younger warns Moscow should expect an ‘assertive response’

Officials concerned that change of spy boss could exacerbate turmoil as UK leaves EU

Alleged failure to challenge MI6 and GCHQ over use of ‘James Bond clause’ alarms watchdog

Japanese prime minister ‘in full support of the draft withdrawal agreement’

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