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

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 today announced its Substack TV app for Apple TV, which brings video posts and livestreams from the publications users are subscribed to. Here are the details. While Substack is best known as ...

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 ...

"We're moving quickly," Farrah Storr, head of international at Substack, tells THR after hiring Mark Swierszcz as its new ...

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 ...

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

For those who don’t already know, Luscious Jackson were one of the breakthrough acts of the 1990s, a pioneering all-female quartet that combined alt-rock with hip-hop and R&B influences via hits like ...

Contact details were accessed in an intrusion that went undetected for months, the blogging outfit says Newsletter platform Substack has admitted that an intruder swiped user contact details months ...

As TikTok’s future hangs in the balance, the newsletter platform is trying to scoop up video creators. As TikTok’s future hangs in the balance, the newsletter platform is trying to scoop up video ...

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