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

Substack, the hugely popular online content platform with 50 million active subscribers, has confirmed it has been hacked.

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

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

Substack confirms a major data breach exposing user emails and phone numbers. What’s behind the breach, and what’s next?

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

"We're moving quickly," Farrah Storr, head of international at Substack, tells THR after hiring Mark Swierszcz as its new Canadian head of partnerships, with more country hires in the works worldwide.

In the aftermath of the big layoffs at The Washington Post, there has been an explosion of commentary-- again-- about the ...

The report says that one of the newsletters — NatSocToday — with 2,800 subscribers, features a swastika as its profile ...

Newsletter platform Substack has confirmed it suffered a security incident, leading to the compromise of users’ email addresses and phone numbers. Chris Best, the CEO of Substack, notified users of ...

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, ...

While Emma Stone is not on social media, she said in a new interview that she is "spending a lot of money on" the ...