Substack Breach: 662,752 User Records Leaked on Cybercrime Forum

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Substack Breach: 662,752 User Records Leaked on Cybercrime Forum

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Substack Breach: 662,752 User Records Leaked on Cybercrime Forum

Thu Feb 05 2026

Cybercrime

Privacy

hackread.com

Substack confirms a breach after hacker accessed internal user records now circulating on crime forums, exposing emails, phone numbers, and account metadata.