Caroline Ellison Testifies Against Sam Bankman-Fried, Blaming Him for Crimes

Ms. Ellison is the government’s star witness in the criminal fraud trial of the founder of the FTX crypto exchange. She also delved into her romantic relationship with Mr. Bankman-Fried.

Microsoft C.E.O. Testifies That Google’s Power in Search Is Ubiquitous

Satya Nadella, the chief executive of Microsoft, is the government’s biggest-name witness in its landmark antitrust case against Google.

Ukraine’s War of Drones Runs Into an Obstacle: China

As the war with Russia stretches on, so too does a contest to make more and deadlier flying machines. That means a fight over global electronics supply chains that run through China.

Gifts, Gadgets and Greece: Inside a Huawei Lobbying Campaign

Leaked internal messages detail efforts by the Chinese tech giant to court Greek officials and fight an American-led effort against its technology.

Meet the A.I. Jane Austen: Meta Weaves A.I. Throughout Its Apps

Meta introduced artificially intelligent characters based on Jane Austen, Snoop Dogg and others into Instagram, Facebook and WhatsApp, as the race to lead the technology heats up.