Substack says hackers accessed user emails, phone numbers, and internal metadata in October 2025, with a database of 697,313 ...

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 ...

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 ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Substack hack — what you need to know. When you think of blogging in 2026, especially in ...

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 ...

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 ...

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 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 have accounts on any of these services, now's a good time to check your security settings. Plus more from a busy week in cybersecurity chaos. I've been writing and editing stories for almost ...

New album, new label and new name. After three EPs on Interscope Records, Allen-raised, Brooklyn-based singer August Ponthier has come out as nonbinary with the release of their first full-length ...

William von Mueffling’s Cantillon Capital Q4 2025 13F portfolio rose to $18.49B, with 37 holdings and continued high concentration in top positions. Broadcom remains the largest holding at 8.62%, but ...

We are now one year into Donald Trump’s second term, and something strange is happening in political media. A lot of people who spent years insisting that the so-called “alarmists” were being ...