A secret inquiry by the security service's watchdog concluded there were 'serious failings in MI5's management of Agent X’.

MI5 covered up for a neo-Nazi information, known only as agent X, after he used a machete to coercively control his girlfriend — his ex is now seeking an apology from the service ...

A secret inquiry by MI5's watchdog found the service knew an agent it defended in court was "obsessed" with violence, the BBC ...

MI5’S boss has warned the UK is under threat from proxy attacks on behalf of hostile states — as new legal powers mean banned ...

Add Yahoo as a preferred source to see more of our stories on Google. Proceedings were launched at the High Court in London (Anthony Devline/PA) (PA Archive) MI5 has offered an “unreserved” apology to ...

Add Yahoo as a preferred source to see more of our stories on Google. Since its creation in 1909 as the Home Department of the Secret Service Bureau, and its designation during World War I as Section ...