Substack data breach exposed user email addresses and phone numbers for months before CEO Chris Best confirmed the October incident in February, prompting security concerns.

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 ...

Interview with Beehiiv CEO and co-founder Tyler Denk about the newsletter platform's support for journalists and how it ...

Air strikes have never dislodged a regime, and Robert Pape argues they will only deepen Trump’s foreign-policy dilemmas.

Firms like Polymarket and Kalshi are turning war into yet another racket, as the suffering of many becomes a windfall payday ...

A growing number of online shops are quietly moving some of their best content onto Substack, a subscription newsletter ...

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

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

The company has emailed affected users after a dark web source claims the data of almost 700,000 users was compromised. Substack, a high-profile publishing platform widely used by academics, ...

Citadel Securities analyst Frank Flight laid out why the grim future envisioned in Citrini Research's note is likely to ...

Bulwark Live: SOTU will start at 8:50 p.m. ET on Substack and YouTube. Sam Stein and Andrew Egger will kick off the night ...