The U.S. Navy was "impacted" by Chinese state-backed hackers, which targeted infrastructure in the U.S. and Guam in an attack first flagged by Microsoft.
Nvidia's stock performance has been a boon for some names but has sent shares of conventional CPU manufacturers such as Intel down in Thursday trading.
Sales are up because of spiking demand for the graphics processors that Nvidia makes that power AI applications like those at Google, Microsoft and OpenAI.
The surge in Nvidia following its explosive sales guidance could help catapult the stock into the group of public companies with a $1 trillion market cap.
Dutch firm ASML and Taiwan's TSMC, two of the world's most important semiconductor firms, got a share price boost after Nvidia's earnings impressed investors.
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