Security minister Dan Jarvis has said the government will not tolerate "covert and calculated" attempts to interfere with the ...

MPs and members of the House of Lords have been warned by MI5 that they face a significant risk of espionage from the Chinese ...

The Independent says a "new row" has erupted between London and Beijing after the MI5 alert to British politicians. It ...

MI5 lied to three courts while defending its handling of a misogynistic neo-Nazi state agent who attacked his girlfriend with a machete, the BBC can reveal. Arguing for secrecy, the Security Service ...

The prime minister has ordered a new investigation into how MI5 gave false evidence to three courts about conversations with the BBC. Sir Keir Starmer's direction follows requests from the High Court ...

The Security Service, MI5, made “multiple” unlawful applications for phone data in an attempt to identify the confidential ...

MI5 is facing fresh scrutiny in the case of a violent neo-Nazi agent after a High Court judge said he had "no confidence" in the Security Service's account of how a senior officer gave false evidence.

MI5 is contending with near-record volumes of terror investigations and fast-rising state threats, the intelligence agency's boss has warned. The security service is ...

The watchdog charged with holding MI5 to account rewrote a report into the handling of a violent neo-Nazi agent after the Security Service gave it false information, the BBC can reveal. An early draft ...

The head of MI5 has released a statement saying he is "profoundly sorry" that the agency did not prevent the 2017 Manchester Arena attack This comes after an inquiry finds that the security service ...

The home secretary has said MI5 giving false evidence to multiple courts was a "serious failing", as she accepted a further investigation should take place. Yvette Cooper, who is responsible for the ...

MI5 has offered an “unreserved” apology to the High Court saying there had been “failings and errors” in legal proceedings related to an alleged source accused of abusing two women. An injunction was ...