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 ...

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, ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. While TikTok and Instagram reels make headlines, Substack has been racking up cool‑girl points in the background. Founded ...

The company that started as a newsletter platform has rapidly expanded to different content formats. The company that started as a newsletter platform has rapidly expanded to different content ...