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 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 ...

Exclusive: Site takes a cut of subscriptions to content that promotes far-right ideology, white supremacy and antisemitism ...

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 ...

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 ...