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

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

Snap is entering a crowded market, with Patreon, Substack and OnlyFans built around paid memberships, while YouTube and ...

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

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

The hacker claims to have stolen nearly 700,000 Substack user records, including email addresses and phone numbers.

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 ...