Newsletter platform Substack has confirmed a data breach in an email to users. The company said that in October, an “unauthorized third party” accessed user data, including email addresses, phone ...

Newsletter platform Substack is notifying users of a data breach after attackers stole their email addresses and phone numbers in October 2025. Although the incident occurred four months ago, CEO ...

The breach happened in October, but was detected by Substack on February 3rd. The breach happened in October, but was detected by Substack on February 3rd. is a news writer focused on creative ...

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.

PCWorld reports that Substack experienced a data breach in October 2025, exposing email addresses and phone numbers of approximately 697,000 users. The company discovered the security flaw on February ...

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, ...

If you read newsletters to stay informed, here is an update worth paying attention to. Substack, a popular platform where writers, journalists and creators send email updates directly to subscribers, ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

The digital publishing platform Substack has told some of its users that their data was stolen in a security breach. The affected account holders had their email addresses and phone numbers scraped in ...

Newsletter platform Substack has admitted that an intruder swiped user contact details months before the company noticed, forcing it to warn writers and readers that their email addresses and other ...

The 2025-2026 ETX View’s 40 Under Forty magazine is out now, announcing winners of the fifth annual awards program. View the digital flipbook below: In this commemorative magazine, learn about each ...