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 ...
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.
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 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.
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