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 "ever-present threat".

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 ...

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

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

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

The intelligence agency warned MPs and their staff to look out for spies trying to elicit information from them by blackmail or phishing attacks.

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

Security Service chief Sir Ken McCallum said the ‘more hostile world’ had forced the biggest shift in MI5’s mission since ...

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 ...

MI5 chief expresses 'frustration' at failure to prosecute two men accused of passing intelligence from parliament to Beijing ...

Stella Rimington in 2001: she was accused by old MI5 hands of being vain, self-serving and greedy for publishing an autobiography - Eddie Mulholland Dame Stella Rimington, who has died aged 90, was ...