If you’re impacted by the security incident, you’ll hear directly from the brand with an email from Substack's CEO.

Substack on Thursday announced the launch of its Creator Accelerator Fund, which provides a $20 million funding guarantee aimed at helping creators grow their audience and move their paid subscribers ...

Substack says hackers accessed user emails, phone numbers, and internal metadata in October 2025, with a database of 697,313 records later posted online.

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

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

Twitter’s decision to prohibit likes, tweets, and retweets on tweets with Substack URLs seems to fly in the face of owner Elon Musk’s vocal support of free speech on the platform. Twitter’s decision ...