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

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

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

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

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

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

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In 2025, everybody in fashion has a Substack. At least, that’s what it looks like, judging by my increasingly crowded inbox. Has it reached a saturation point? In March, Substack hit five million paid ...