The agency will have to make “uncomfortable choices” in the face of “much more aggression from nation states”, said Ken McCallum, the director general of MI5. “In effect, we had the 20 ...

More than 250 people who were either bereaved by the bombing, or survived it, are suing MI5, MI6 and GCHQ at an Investigatory ...

MI5 is being forced to 'pare back' its fight against counterterrorism due to growing threats of meddling from Russia and other aggressive countries. Security agency boss, Ken McCallum revealed ...

MI5 has had to “pare back” its counterterrorism focus because of the growing threat from Russia and other hostile states, the security agency’s boss has said. Ken McCallum, the director ...

A lawyer who was accused by MI5 of working for the Chinese government has lost her legal challenge against the intelligence agency. The UK's Security Service warned MPs in January 2022 that it ...

MI5 has been forced to “pare back” its focus on counter-terrorism in order to tackle the growing threat from Russia and other aggressive nation states, its director general has disclosed.

In 2022, a BBC News investigation established through multiple sources that the man - known as X for legal reasons - was an MI5 agent. He used his MI5 role to coercively control Beth, his ex-partner.

MI5 has issued a rare warning that an alleged Chinese agent has infiltrated Parliament to interfere in UK politics. An alert from the security service said Christine Ching Kui Lee "established ...

Legal action against MI5 is the “next step” for vindication for scores of survivors and people bereaved by the Manchester ...

MI5 will be forced to turn focus away from terrorism and towards Russia and other hostile states as a result of the security agency’s “finite capacity”, its boss has said. The agency will have to make ...