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

Publishing platform Substack has disclosed a data breach that leaked nearly 700,000 user records after an unauthorized third-party exploited a security flaw.

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.

Newsletter platform Substack has confirmed it suffered a security incident, leading to the compromise of users’ email addresses and phone numbers. Chris Best, the CEO of Substack, notified users of ...

Substack has confirmed a major data breach that exposed emails and phone numbers for approximately 700,000 users, with the ...