On the heels of Instagram rolling out a Reels app for connected TV, newsletter creators can now offer videos and livestreams to subscribers via Apple TV and Google TV. By Etan Vlessing Canada Bureau ...

The digital publishing platform Substack has told some of its users that their data was stolen in a security breach. The affected account holders had their email addresses and phone numbers scraped in ...

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

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

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

AI could flood feeds with slop or give creators "more creative leverage," said Substack CEO. The CEO of the newsletter platform said attention is the real scarcity in the media landscape. AI-generated ...

Add Yahoo as a preferred source to see more of our stories on Google. Dominic Lipinski/PA Wire I didn’t go looking for a fight with Britain’s Online Safety Act. But as the CEO of Substack – an online ...

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

Substack, the hugely popular online content platform with 50 million active subscribers, has confirmed it has been hacked. Here’s what you need to know.

Newsletter platform Substack has confirmed it suffered a security incident, leading to the compromise of users’ email addresses and phone numbers. Chris Best, the CEO of Substack, notified users of ...

Substack has confirmed a significant data breach that exposed user information, but questions remain about the scale of the breach, and why it remained undetected ...

Publishing platform Substack has disclosed a data breach that leaked nearly 700,000 user records after an unauthorized third-party exploited a security flaw.