If you’re impacted by the security incident, you’ll hear directly from the brand with an email from Substack's CEO.

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

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

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

If you have accounts on any of these services, now's a good time to check your security settings. Plus more from a busy week ...

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

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

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

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

Substack’s new TV app expands the platform beyond newsletters, offering subscribers an easier way to watch video posts and livestreams on Apple TV and Google TV. The post You can now enjoy Substack on ...

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 ...

Like clockwork, every Wednesday morning, Russ Thornton, an Atlanta-based advisor who specializes in helping women with retirement planning, publishes a financial newsletter called “Wealthcare for ...