OpenAI pushed out co-founder Sam Altman as chief executive officer, saying he wasn't being "consistently candid in his communications" with the artificial-intelligence company's board. The startup said Friday that its board concluded after a review that Altman's actions, which it didn't specify, were "hindering its ability to exercise its responsibilities." The company's statement, unusually candid for such a situation, said: "The board no longer has confidence in his ability to continue leading OpenAI."

LEMONT, Ill.--Inside a vast data center on the outskirts of Chicago, the most powerful supercomputer in the world is coming to life. The machine will be able to analyze connections inside the brain and help design batteries that charge faster and last longer. Called Aurora, the supercomputer's high-performance capabilities will be matched with the latest advances in artificial intelligence. Together they will be used by scientists researching cancer, nuclear fusion, vaccines, climate change, encryption, cosmology and other complex sciences and technologies.

Scammers are capitalizing on the rush of consumer interest in artificial-intelligence tools to steal U.S. small businesses' social-media-account passwords, Google alleges in a new lawsuit. The lawsuit, filed Monday, targets unnamed individuals in India and Vietnam. Google said the hackers have been tricking small-business owners into clicking on Facebook ads that offer to download Google's Bard artificial-intelligence chatbot. When they do, the ads hit them with malware that steals their social-media credentials.

Creating and disseminating convincing propaganda used to require the resources of a state. Now all it takes is a smartphone. Generative artificial intelligence is now capable of creating fake pictures, clones of our voices, and even videos depicting and distorting world events. The result: From our personal circles to the political circuses, everyone must now question whether what they see and hear is true.

Microsoft temporarily blocked employee access to ChatGPT on company devices, with a notice to employees citing security concerns, according to an internal blog post. Employees who tried to go to the site on Thursday afternoon were briefly redirected to an internal notice that said the website was blocked by their organization, people familiar with the matter said. After more than an hour, access was restored, they said.

A group of former Apple executives is launching a consumer device that will be among the first to use a ChatGPT-powered voice assistant, one of a number of new hardware offerings seeking to free users from the ubiquity of smartphones. On Thursday, the San Francisco-based startup Humane announced the availability of a wearable device, called the Ai Pin, which sits on a user's chest like a Star Trek badge. The company said its main function is to access an artificial-intelligence assistant that uses ChatGPT, the hugely popular chatbot created by Microsoft-backed OpenAI, primarily to understand commands.

When girls at Westfield High School in New Jersey found out boys were sharing nude photos of them in group chats, they were shocked, and not only because it was an invasion of privacy. Students said one or more classmates used an online tool powered by artificial intelligence to make the images, then shared them with others. The discovery has sparked uproar in Westfield, an affluent town outside New York City.

BLETCHLEY, United Kingdom--Here in the English countryside, at an estate where World War II codebreakers cracked the Nazis' Enigma encryption machine, world leaders pledged to work together to lessen risks of a technology they said also poses a grave threat. Artificial intelligence, they said, could in its most advanced forms create catastrophic risks in realms including cybersecurity and biotechnology--or even escape human control.

SINGAPORE--New U.S. export controls may compel artificial-intelligence giant Nvidia to cancel billions of dollars in next-year orders for its advanced chips to China, a move that could deprive Chinese tech companies of crucial AI resources. The Santa Clara, Calif.-based company had already finished delivering orders of its advanced AI chips to China for this year, according to people familiar with the matter, and was pushing to deliver some 2024 orders in advance before the new rules were scheduled to come into effect in mid-November.

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