Substack says hackers accessed user emails, phone numbers, and internal metadata in October 2025, with a database of 697,313 records later posted online. A popular home for independent writers is ...
Newsletter platform Substack is notifying users of a data breach after attackers stole their email addresses and phone numbers in October 2025. Although the incident occurred four months ago, CEO ...
Newsletter platform Substack has confirmed it suffered a security incident, leading to the compromise of users’ email addresses and phone numbers. Chris Best, the CEO of Substack, notified users of ...
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