We came across a bullish thesis on Airbnb, Inc. on Speedwell Memos’s Substack by Speedwell Research. In this article, we will summarize the bulls’ thesis on ABNB. Airbnb, Inc.’s share was trading at ...

February 2026 brought a series of significant data breaches spanning automotive, aviation, hospitality, finance, telecom, and media. The incidents were not driven by a single attack method. Some ...

We came across a bullish thesis on APi Group Corporation on R. Dennis’s Substack by OppCost. In this article, we will ...

Anthropic retires its Claude Opus 3 AI model, which now publishes its own Substack newsletter of essays and reflections..

Anthropic retired a popular AI model and now it's blogging on Substack ...

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, ...

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 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 ...

“We’re moving quickly,” Farrah Storr, head of international at Substack, tells THR after hiring Mark Swierszcz as its new Canadian head of partnerships, with more country hires in the works worldwide.

Substack today announced its Substack TV app for Apple TV, which brings video posts and livestreams from the publications users are subscribed to. Here are the details. While Substack is best known as ...