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

Add Yahoo as a preferred source to see more of our stories on Google. Substack writers are expressing their concerns about the platform’s following feature on social media, which some argue is ...

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

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.

Newsletter platform Substack lured prominent journalists and writers by pushing a subscription model that allowed them to directly connect with readers who pay them. "Our decision to focus on ...