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Newsletter platform Substack notifies users of data breach
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Newsletter platform Substack notifies users of data breach


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Newsletter platform Substack is notifying users of a data breach after attackers stole their email addresses and phone numbers in October 2025.

First seen on bleepingcomputer.com

Jump to article: www.bleepingcomputer.com/news/security/newsletter-platform-substack-notifies-users-of-data-breach/

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