Event Brief
Substack Confirms Data Breach Affects User Data
Filed: Feb 05, 2026 at 12:03 PM ET
Summary: Substack revealed a data breach impacting user emails and phone numbers, discovered in February 2026.
WHO: Substack
WHAT: Data breach affecting user email addresses and phone numbers
WHEN: Feb 05, 2026 at 9:55 AM ET
WHERE: Online
WHY: Customer data was accessed without authorization
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
🔍 4 sources analyzed
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