Substack said that customer data was accessed in October 2025, but wasn't discovered until early February.
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.
Exclusive: Site takes a cut of subscriptions to content that promotes far-right ideology, white supremacy and antisemitism ...
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Another week, another data disaster: Substack, Coinbase, and a malicious Notepad++ update
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 ...
The hacker claims to have stolen nearly 700,000 Substack user records, including email addresses and phone numbers.
"We're moving quickly," Farrah Storr, head of international at Substack, tells THR after hiring Mark Swierszcz as its new ...
The report says that one of the newsletters — NatSocToday — with 2,800 subscribers, features a swastika as its profile ...
Substack has removed several publications for inciting violence, the newsletter publisher said in a statement shared with CNN Tuesday, as writers from across the platform threaten ed to quit over the ...
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, ...
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