There’s so much to scream about. Introducing PRIMAL SCREAM, the new Substack from Joanna Coles. In it, we’ll stop pretending ...

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

A finance writer’s dystopian 2028 thought experiment argues that AI will soon take over in dramatic ways.

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

The 43rd president of the United States launched a Substack site Feb. 16 with a 1,500-word tribute to a predecessor.

Substack, the hugely popular online content platform with 50 million active subscribers, has confirmed it has been hacked.

In January, Anthropic “retired” Claude 3 Opus, which at one time was the company’s most powerful AI model. Today, it’s back — ...

The Anthropic AI’s Substack lands amid growing questions about identity, sentience, and how models are retired.

Forbes contributors publish independent expert analyses and insights. Karin Eldor covers entrepreneurs and leaders in fashion & lifestyle. The momentum hasn’t slowed. Every time I went to hit publish ...

Anthropic retired a popular AI model and now it's blogging on Substack ...