Substack, the hugely popular online content platform with 50 million active subscribers, has confirmed it has been hacked. Here’s what you need to know.

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

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

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

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

Substack has reached more than 5 million paid subscriptions for the first time, the company said this week. The updated audience total comes just four months after the digital journalism and content ...