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 ...

Journalism is better when it’s backed by live markets,” Polymarket’s X account said in a post announcing the deal.

Publishing platform Substack has disclosed a data breach that leaked nearly 700,000 user records after an unauthorized third-party exploited a security flaw.

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.

Critics of Reform's candidate in the upcoming Gorton and Denton by-election say he has gone from studying extremism to ...

The most Secret Aircraft of World War 2 ...

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

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

Your newsletter could be your single biggest growth channel. These 5 steps from a founder who's built 10 million subscribers show you exactly how to make it work.

The global publishing platform Substack is generating revenue from newsletters that promote virulent Nazi ideology, white supremacy and anti-Semitism, a Guardian investigation has found. The platform, ...

Ex-Prince Andrew’s secretive midnight move from Royal Lodge, the drip-drip of fresh Epstein revelations, and a widening split between King Charles and Prince William over how to handle the “Andrew ...