Slow Horses season 5 concluded with one of the most intense and surprising episodes of the series to date, ultimately seeing ...

In an annual speech, Ken McCallum says the security service is operating in "a new era" with terrorism remaining an ...

Slow Horses Season 5 ending explained as the finale wraps up the London Rules chapter. The episode reveals secrets about ...

Sir Ken McCallum, Director General of MI5, said the security service routinely uncovered plots to carry out surveillance, sabotage, arson or acts of physical violence in the UK ...

The head of Britain’s domestic intelligence agency says China poses a daily threat to the United Kingdom’s security.

Sir Ken admits he's "frustrated when opportunities to prosecute national security threatening activity are not followed" - as ...

The MI5 chief accused Moscow, Tehran and Beijing of continuing to undermine the UK’s national security through espionage, cyberattacks and intimidation campaigns.

Slow Horses Season 5 has upped the stakes with a terrorist plot revolving around the mayoral campaign in London.

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 ...

MI5 disrupted a plot from China against the UK as recently as last week, the spy agency’s head, Ken McCallum, said, as he expressed frustration at the collapse of a trial of two alleged spies.

Sir Ken McCallum says MI5 has acted against Chinese activity in the last week as parliamentary inquiry launched into spy case ...

UK's MI5 spy chief said on Thursday (Oct 16) he was frustrated by the collapse of a China spying case which has led to intense scrutiny of whether the government was to blame, saying Chinese ...