Substack data breach exposed user email addresses and phone numbers for months before CEO Chris Best confirmed the October ...

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

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

It was easy to view Substack's 2023 Nazi controversy as a kicked can that could turn up again. Well, white supremacist content led to another headache for the company this week. User Mag reported on ...

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 ...

According to The Guardian, several newsletters promoting Nazi ideology and antisemitic conspiracy theories were operating on ...

The Republican former president's essay centered on first leader George Washington, from his "humility" to slavery links.

Add Yahoo as a preferred source to see more of our stories on Google. Subscribe to our brand-new Substack channel all about the Billboard charts — a must-read for music fans, industry professionals ...