Substack Breach May Have Leaked Nearly 700,000 User Details Online

16:22 - 18 Feb 2026

www.techrepublic.com

Substack says hackers accessed user emails, phone numbers, and internal metadata in October 2025, with a database of 697,313 records later posted online.

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https://www.techrepublic.com/article/news-substack-data-breach-user-accounts-leaked/

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Publication date: 2026-02-18 16:22:51
Last retrieval: 2026-02-18 20:45:18.594343