MI5 Chief Warns of Escalating Hybrid Threats From Iran and Russia on British Soil

What happened: MI5 chief Ken McCallum used his annual threat briefing in London to warn of escalating hybrid threats from Iran and Russia on British soil. Why it matters: The briefing frames hostile state activity as a growing domestic security concern for the UK. Key numbers: Briefing delivered in 2025. Coverage: 4 outlets in 24h

MI5 chief Ken McCallum used his annual threat briefing in London to warn of escalating hybrid threats from Iran and Russia on British soil.

The briefing frames hostile state activity as a growing domestic security concern for the UK. Key numbers: Briefing delivered in 2025.