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.

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

In recent years, social media has become increasingly important in everyday life. Phenomena like “doom scrolling” have been ...

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 ...

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

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

The move comes as Substack has been investing more heavily in video and livestreaming, as it looks to compete with platforms like YouTube and Patreon for both creators and viewers.

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 ...

Publishing platform Substack is making money from newsletters that promote far-right ideologies and antisemitism, The ...

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 ...