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

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.

"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.

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

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?

After a decade-plus marriage that had gone “sexless” and “passion-depleted,” Loretta hit her mid-40s and realized her libido ...

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 ...

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