Substack, a creator-focused subscription and publishing platform, has suffered a data breach affecting an unknown number of creators and subscribers on its platform. The company confirmed the incident ...

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 admitted that an intruder swiped user contact details months before the company noticed, forcing it to warn writers and readers that their email addresses and other ...

The breach happened in October, but was detected by Substack on February 3rd. The breach happened in October, but was detected by Substack on February 3rd. is a news writer focused on creative ...