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

Michael Burry of "The Big Short" fame has shifted from virtual silence to answering questions about his personal and ...

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

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

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.

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

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

Charli XCX, Doechii, and Troye Sivan are some of the artists publishing essays that challenge perceptions of stardom ...

Substack states that the security flaw has now been fixed and that a full investigation is underway. There are currently no ...

"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.

Forbes contributors publish independent expert analyses and insights. Karin Eldor covers entrepreneurs and leaders in fashion & lifestyle. The momentum hasn’t slowed. Every time I went to hit publish ...

Substack has taken advantage of a new model for the internet, where subscriptions for content are increasingly becoming the norm. The website is the current king of paid newsletters, where writers ...