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 ...

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 ...

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 ...

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

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.

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, a newsletter platform, has confirmed a data breach compromising user email addresses and phone numbers ...

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.