Substack data breach exposed user email addresses and phone numbers for months before CEO Chris Best confirmed the October incident in February, prompting security concerns.
Chelle Honiker's weekly newsletter on AI and automation for authors hits Substack bestseller lists with a social ...
Substack says hackers accessed user emails, phone numbers, and internal metadata in October 2025, with a database of 697,313 ...
Substack, the hugely popular online content platform with 50 million active subscribers, has confirmed it has been hacked.
Forbes contributors publish independent expert analyses and insights. Karin Eldor covers entrepreneurs and leaders in fashion & lifestyle. The momentum hasn’t slowed. Every time I went to hit publish ...
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Substack, Polymarket announce partnership: ‘Journalism is better when it’s backed by live markets’
Publishing platform Substack and prediction market Polymarket announced a new partnership on Wednesday. The new partnership ...
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