MI5 boss warns the debate on Russian interference in the Brexit vote risks empowering Kremlin trolls
Head of MI5 Sir Ken McCallum waded into the row today after the Prime Minister said in a podcast he had been told 'clearly' on arriving in No10 that Vladimir Putin had meddled in the 2016 vote.

Expanded Context
Brimstone Report is tracking this as a curated world brief. The source report from Daily Mail says: Head of MI5 Sir Ken McCallum waded into the row today after the Prime Minister said in a podcast he had been told 'clearly' on arriving in No10 that Vladimir Putin had meddled in the 2016 vote.
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Key Facts
- Primary source: Daily Mail
- Published: Oct 13, 2026, 1:44 PM UTC
- Coverage area: World
- Brimstone role: curated summary, explanation, and source attribution
- Topic signals: developing story metadata
Timeline
- Source published: Oct 13, 2026, 1:44 PM UTC
- Brimstone indexed: Added to the curated Brimstone feed and linked to related coverage.
- Next update to watch: Additional sourcing, official confirmation, court or agency records, or follow-up reporting.
Source Attribution
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