After a Substack post laid out a striking economic warning, major indexes and a handful of individual stocks sank. The ...

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 ...

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

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

Publishing platform Substack and prediction market Polymarket announced a new partnership on Wednesday. The new partnership will allow Substack users to integrate Polymarket’s prediction data directly ...

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.

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 ...

Substack has allowed for the inclusion of Polymarket embeds into blogs since 2024, and the new update mostly seems like it will streamline the process. Notably, the prediction charts can now be added ...

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

Substack CEO Chris Best says AI could flood feeds with junk — or empower independent creators to spark a cultural renaissance.