AI company Anthropic recently added web search to its chatbot Claude. It joins other artificial intelligence tools like Perplexity and ChatGPT in delivering one clear answer to a web search query instead of pages and pages of links. Plus, 23andMe declared bankruptcy. So what’s gonna happen to all that genetic data? But first — the Signal group chat heard round the world. A Trump administration official appears to have inadvertently invited a journalist into a conversation about sensitive national security issues on the secure messaging app Signal. The app does offer end-to-end encryption, the gold standard for security in consumer-level messaging apps, but that doesn’t make it foolproof for the most sensitive of data. Marketplace’s Meghan McCarty Carino spoke with Joanna Stern, senior personal technology columnist at The Wall Street Journal, to break down all these topics for this week’s Marketplace “Tech Bytes: Week in Review.”

On today’s episode of “Marketplace Tech,” Meghan McCarty Carino speaks with Daniel Cohan, professor of civil and environmental engineering at Rice University, about virtual power plants. These aren’t physical generating stations. They’re more of a network, usually managed by a local utility, that aggregates electricity from  different sources like businesses or homes. Essentially, these customers give energy back to the grid or help the utility balance supply and demand. As electricity demand grows, thanks to power-hungry AI data centers, electric cars and extreme weather, some providers are turning to virtual power plants to reduce strain on the grid.

Last Friday, the Securities and Exchange Commission held its first-ever crypto roundtable, a discussion with industry leaders and skeptics to answer a grand question: how should the SEC regulate crypto? Should SEC officials regulate crypto tokens like bonds and stocks? The agency under President Donald Trump is taking what many see as a friendlier approach to cryptocurrency and has already dropped a number of lawsuits against various crypto exchanges initiated during the Biden Administration. Axios reporter and author of the Axios Crypto newsletter, Brady Dale, returns to the show to discuss why the question of regulating crypto like a security asset is a very complicated one to answer.

There’s a lot of hope that artificially intelligent chatbots could help provide sorely needed mental health support. Early research suggests humanlike responses from large language models could help fill in gaps in services. But there are risks. A recent study found that prompting ChatGPT with traumatic stories — the type a patient might tell a therapist — can induce an anxious response, which could be counterproductive. Ziv Ben-Zion, a clinical neuroscience researcher at Yale University and the University of Haifa, co-authored the study. Marketplace’s Meghan McCarty Carino asked him why AI appears to reflect or even experience the emotions that it’s exposed to.

The stock market has been a tad volatile lately. But this month, the digital physical therapy company Hinge Health filed for an initial public offering. Plus, a new tool out of Stanford University evaluates how various AI models perform in real-world health care. It grades them on tasks from patient education to clinical note generation. But first, Nvidia just hosted its annual GTC confab, where it announced a whole lot of collaborations and, of course, some new and improved chips. Main takeaway: The company has its fingers in a bunch of AI pies. Marketplace’s Meghan McCarty Carino discusses all of this with Christina Farr, managing director at Manatt Health.

Stanford University has long been a feeder for the neighboring tech industry with graduates often heading to a brand name of Silicon Valley. But the times, they are a-changin’, according to writer Jasmine Sun. She reported recently for the San Francisco Standard that building tech for the military has become cool on campus. One student, Divya, said her “most effective and moral friends are now working for Palantir.” Marketplace’s Meghan McCarty Carino spoke with Sun about how this shift compares to when she attended Stanford in the late 2010s.

Federal officials are warning consumers against a type of cyberattack that’s been on the rise. It’s called Medusa, a ransomware program that uses tactics like phishing to infect a target’s system and encrypt their data, which hackers then threaten to publicly release unless a ransom is paid. Medusa is just one example of how hackers are evolving their strategies at a time when federal cybersecurity resources are being cut by the Donald Trump administration. Marketplace’s Meghan McCarty Carino spoke with Lesley Carhart, director of incident response for North America at cybersecurity firm Dragos, to learn more about the use of embarrassment as a weapon and the impact of funding cuts on digital safety.  

You could say once your company becomes a verb, you’ve arrived. And “Venmo me” is a pretty common phrase these days. Mobile payment apps like Venmo, along with Zelle and Cash App, are becoming pretty widespread, especially among young people. According to the Federal Reserve Bank of Atlanta, consumers under the age of 25 were twice as likely to have used some kind of mobile payment app compared to older Americans. But as with any form of money, there is etiquette about how to use them. Marketplace’s Stephanie Hughes spoke with Yanely Espinal, host of Marketplace’s “Financially Inclined,” a video podcast that provides money lessons for teens, about the do’s and don’ts of these payment apps.

Back when the pandemic first hit, many students received tablets or laptops from their schools. Schools also wanted to know what students were doing on those devices, so demand for AI-powered software to monitor students’ digital activities also grew. That surveillance software is the subject of a new investigation from the Associated Press andTthe Seattle Times, whic Claire Bryan coauthored. Marketplace’s Stephanie Hughes asked her what sort of things this surveillance software might flag.

We are taking a look at how the tech industry is pushing back against federal cuts to artificial intelligence and science. Plus, Waymo is expanding its self-driving services in Silicon Valley. But first, Chinese e-commerce giant Alibaba this week released an AI model called R1-Omni, which the company says can read human emotions. Alibaba shared a demo on the coding platform GitHub that accurately described a character as being angry and experiencing fear. Marketplace’s Stephanie Hughes is joined by Jewel Burks Solomon, managing partner at venture firm Collab Capital, to break down these stories.

In the spring of 2020, 77% of American public schools moved to online distance learning when the pandemic hit, according to data from the U.S. Department of Education. Prior to the pandemic, you could say that schools were trickling into the digital age. Then, when COVID changed everything, they were basically tossed into it. Some educators adapted quickly, like Bebi Davis, who was working as a vice principal in Honolulu at the time. She’s now principal of Princess Victoria Kaiulani Elementary. Going totally virtual, she said, meant introducing an onslaught of technology — videoconferencing, classroom management software and messaging systems. Marketplace’s Stephanie Hughes asked Davis about the school system’s experience adopting so much tech all at once.

March 11 marks five years since the World Health Organization declared the COVID-19 virus officially a pandemic. Tracking the virus has been key to understanding where outbreaks are occurring and one tracking tool that had been mostly on the shelf prior to the pandemic is wastewater surveillance. That’s pretty much what it sounds like — testing what we flush down the toilet which eventually lands in what’s known as a sewer shed. Marketplace’s Stephanie Hughes spoke with molecular virologist Marc Johnson at the University of Missouri about the advantages of wastewater surveillance. The following is an edited transcript of their conversation.