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

We keep an eye out for the most interesting stories about Labby subjects: digital media, startups, the web, journalism, strategy, and more. Here’s some of what we’ve seen lately.

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

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

"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.

The digital publishing platform Substack has told some of its users that their data was stolen in a security breach. The ...

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

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, ...

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

The company has emailed affected users after a dark web source claims the data of almost 700,000 users was compromised.

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 ...

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 in cybersecurity chaos.