Beyond the war, Dell stock jumped 6% on Monday afternoon following a rumor that the PC maker and Nvidia were in buyout talks.

Antrophic says its newest model found vulnerabilities in every major operating system and browser—and wrote exploits for them ...

China, the U.S., Russia and others have ramped up their contest over artificial-intelligence-backed weapons and military systems. The buildup has been compared to the dawn of the nuclear weapons age.