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.

Citrini Research’s post on AI risks appears to have sparked a stock selloff.

Is AI bullish for the economy, or bearish? Maybe it's so bullish that it becomes bearish. That's the conceit of a viral Substack post from Citrini Research painting a dark portrait of a future scenari ...

AI disrupts software, which leads to software-backed loan defaults. The pace of AI disruption is not contained to software in this scenario: AI agents, vibe coding, and autonomous driving come for the ...

Citrini Research’s post on AI risks appears to have sparked a stock selloff.

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

Substack chief Chris Best said he didn't want to "engage in speculation" about statements like “all brown people are animals." Reading time 4 minutes Substack, best known as a subscription newsletter ...