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MI5 warns of rising UK threats from Russia, Iran and AI

MI5 head Sir Ken McCallum says foreign threats have quadrupled in a decade, citing Russian reliance on criminal proxies and expanding Iranian campaigns.

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Inewgen
14 Oct 2026Source: BBC World3 min read (0 views)
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MI5 warns of rising UK threats from Russia, Iran and AI

Stock photo for illustration only, not from the actual event

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  • State threats against the UK have quadrupled over the past decade, according to MI5.
  • Russia remains top aggressor, turning to paid criminals after nearly 1,000 spy expulsions.
  • Iran-linked activities led to 50 arrests last year, targeting Jewish sites and military bases.
  • MI5 has launched an AI Threat Assessment Centre to counter bioweapon risks and targeted propaganda.

MI5 is dedicating more resources to countering state threats than at any point since the Cold War, according to the head of the intelligence service. Delivering his annual address at Thames House in central London, Sir Ken McCallum stated that foreign adversary threats have quadrupled over the past decade, naming Russia as the primary aggressor alongside rising hostile activities linked to Iran.

Sir Ken explained that British efforts to identify and expel Russian operatives have severely hobbled the Kremlin's traditional covert operations. With nearly 1,000 suspected Russian spies expelled since the invasion of Ukraine, Moscow's global toolkit has been drastically weakened, forcing authorities in the Kremlin to scramble and pay criminal proxies to carry out attacks on their behalf.

4xIncrease in state threats over a decade
1,000Russian spies expelled from the UK
50Arrests over Iran-linked activities

Emphasising that these desperate measures do not reflect a global superpower holding a strategic upper hand, Sir Ken turned his attention to expanding Iranian hybrid campaigns within British borders. Authorities recorded 50 arrests over the past year relating to Iran-linked operations, which have primarily targeted Jewish communities and harder security targets such as military installations, including an incident involving suspicious vehicles near RAF Fairford.

cyber security technology digital server room

Stock photo for illustration only, not from the actual event

"What I can say is that those who seek to cause mayhem on British streets - whether hired thugs here or their paymasters overseas - will meet an unflinching response."

Sir Ken McCallum

Addressing the emerging technological dangers, the intelligence chief highlighted the severe risks posed by the misuse of artificial intelligence. Extremist factions are increasingly utilizing AI to produce hyper-targeted radicalizing propaganda and exploit vulnerabilities surrounding biological weapons. In response to these unprecedented digital challenges, MI5 has officially established a dedicated AI Threat Assessment Centre.

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The public disclosure of these intricate security challenges highlights how modern geopolitical conflicts have shifted away from conventional military confrontations. Intelligence agencies are now forced to adapt to complex hybrid threats that combine cyber operations, proxy criminal networks, and advanced automation, testing the limits of standard national security frameworks.

Alongside foreign state adversaries, domestic and international terrorism pressures continue to weigh heavily on national security. The UK terrorism threat level remains severe, driven significantly by extreme right-wing ideologies blending anti-immigration and anti-Muslim grievances into operational terrorist intent.

Source: BBC World

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