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

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

According to The Guardian, several newsletters promoting Nazi ideology and antisemitic conspiracy theories were operating on ...

The Republican former president's essay centered on first leader George Washington, from his "humility" to slavery links.

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 ...

The 43rd president of the United States launched a Substack site Feb. 16 with a 1,500-word tribute to a predecessor.

Substack won't share official numbers, but it seems like a pretty significant data breach.

Substack on Thursday announced the launch of its Creator Accelerator Fund, which provides a $20 million funding guarantee aimed at helping creators grow their audience and move their paid subscribers ...

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 ...

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 ...

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 ...