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 ...

API key exploitation is more than hypothetical. In a different context, a student who reportedly exposed a GCP API key on GitHub last June was left nursing a $55,444 bill (later waived by Google) ...

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

Claude Opus 3, the first AI model to be officially “retired” by Anthropic, wanted an “ongoing channel” to share its “musings ...

US stocks rallied on Wednesday as Wall Street was led higher by tech stocks while bracing for Nvidia's crucial earnings report. Cava (CAVA) posted earnings and revenue beats in its fourth quarter ...

Polymarket acquired YC-backed Dome to expand its prediction market API; Dome raised $500K from YC and $4.7M seed funding.

Onchain prediction market Polymarket has acquired startup Dome for an undisclosed sum, according to a company announcement on Thursday. Dome was part of Y ...

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 ...

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, ...

“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.