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

Substack data breach exposed user email addresses and phone numbers for months before CEO Chris Best confirmed the October ...

Substack said that customer data was accessed in October 2025, but wasn't discovered until early February.

Prediction market Polymarket has announced a partnership with Substack to enable authors on the platform to seamlessly integrate market data into articles and newsletters. Prediction market Polymarket ...

Substack today announced its Substack TV app for Apple TV, which brings video posts and livestreams from the publications users are subscribed to. Here are the details. While Substack is best known as ...

Popular newsletter platform Substack is the latest company to confirm it experienced a security incident, in which users' email addresses and phone numbers were exposed. According to an email sent to ...

Facing a fractured media landscape and an increasingly skeptical electorate, politicians are turning to podcasts and newsletter platform Substack as direct-to-voter platforms, reshaping how campaigns ...

Like clockwork, every Wednesday morning, Russ Thornton, an Atlanta-based advisor who specializes in helping women with retirement planning, publishes a financial newsletter called “Wealthcare for ...

As TikTok’s future hangs in the balance, the newsletter platform is trying to scoop up video creators. As TikTok’s future hangs in the balance, the newsletter platform is trying to scoop up video ...

The report says that one of the newsletters — NatSocToday — with 2,800 subscribers, features a swastika as its profile ...