Marketplace Tech

Anthropic’s newest AI model, Mythos, is so good, the company says, at uncovering security vulnerabilities that it's too dangerous to release to the public. Anthropic shared a preview version with a select group to help patch the holes that Mythos finds.

But the prospect of a super-hacker AI system is still sending some business leaders into a panic. Marketplace’s Meghan McCarty Carino reports.

Earlier this month, a group called ShinyHunters took responsibility for a hack on the education platform Canvas, which is used for coursework at colleges. In a letter posted online, the group threatened to leak data it took from the platform, including billions of private messages between students and teachers. Canvas was also temporarily unavailable, disrupting students’ ability to do their work.

Then, last week, Instructure, which makes Canvas, said it had reached a deal with the hackers, that the data had been returned and all copies destroyed. Marketplace’s Stephanie Hughes asked Rachel Tobac, CEO at Social Proof Security, what we know about the deal.

As of mid-2025, about a third of newly published websites were generated by artificial intelligence. That’s a massive increase from just three years before when the number hovered around zero.

The AI written text provides fewer diverse viewpoints and is generally presented in a cheerful manner. That's all according to an early study out last month.

Marketplace’s Stephanie Hughes spoke with one of the study’s authors, Stanford University researcher Maty Bohacek, about how AI is changing the nature of the internet.

Hydropower is one of the oldest forms of energy creation, and uses the flow of rushing water to create electricity. The province of Québec, Canada, has historically had an abundance of it and, later this spring, will start supplying hydropower to New York City.

This is the second big hydropower line to link Québec and the Northeast U.S. this year, after a line to Massachusetts came on board this winter.

Right now, the power is going one way, from Canada to the U.S., but some are thinking that the U.S. could eventually sell renewable wind energy back to Canada and let that country hold on to its hydropower for when it's really needed, creating a “regional battery,” says Marketplace's Henry Epp, who’s been reporting on this.

This week, WhatsApp is offering private chats with its AI. Plus, Princeton will now hold supervised exams after a rise in AI-fueled cheating.

But first, Google’s self-driving car division Waymo opted to do a voluntary recall of 3,800 of its robotaxis. This comes after a Waymo drove into a flooded road in San Antonio, Texas. The car was empty and no one was hurt, but Waymo is now updating its software to address how its cars deal with flooded roads.

Will Oremus at The Atlantic joins Marketplace’s Stephanie Hughes for these stories.

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