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

The new partnership will allow Substack users to integrate Polymarket's prediction data directly into their content.

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.

Journalism is better when it’s backed by live markets,” Polymarket’s X account said in a post announcing the deal.

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 ...

On Wednesday, Substack announced new features that allow writers to embed Polymarket data directly into their newsletters and in Notes. Substack had previously introduced Polymarket embeds in 2024, ...

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.

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 ...

The hacker claims to have stolen nearly 700,000 Substack user records, including email addresses and phone numbers.

Substack won't share official numbers, but it seems like a pretty significant data breach.

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