Sir Ken admits he's "frustrated when opportunities to prosecute national security threatening activity are not followed" - as ...
The United Kingdom has seen a 35% rise in the last year in the number of suspects investigated annually for possibly working ...
Britain is facing an escalating threat from hostile states such as Russia, Iran, and China while the terrorism risk is "huge" ...
One in five terror suspects arrested last year were children, the head of MI5 has revealed. Sir Ken McCallum said terrorism ...
The Embassy of Iran in London issued a strong protest against recent remarks by MI5 Director General Ken McCallum, rejecting ...
Britain's MI5 spy chief said on Thursday he was frustrated by the collapse of a China spying case which has led to intense ...
The MI5 chief accused Moscow, Tehran and Beijing of continuing to undermine the UK’s national security through espionage, ...
Sir Ken McCallum, Director General of MI5, said the security service routinely uncovered plots to carry out surveillance, ...