He hacked back — and took down North Korea’s internet

Arturo Bejar was a Meta employee who tried to warn the company that its platforms were harming kids. Eventually, he told a California jury, and a week later, Meta announced its landmark $17 billion settlement. We sat down with the whistleblower who tried to get Meta to listen. Learn about your ad choices: dovetail.prx.org/ad-choices

U.S. officials say Iran-linked hackers are targeting water utilities across the country. So we’re revisiting the story of Nick Lawler, who got a call from the FBI one day in 2023. Chinese state hackers, they told him, had somehow found their way inside the small-town utility he ran in Littleton, Massachusetts. Learn about your ad choices: dovetail.prx.org/ad-choices

When North Korea targeted security researcher Alejandro Caceres, he did something Americans aren’t supposed to do: he struck back — and knocked the country’s entire internet offline. Now, a new Trump administration memo is raising the possibility that, under special circumstances, Americans could strike back at cybercriminals — legally. Learn about your ad choices: dovetail.prx.org/ad-choices

Journalist Jason Rezaian spent a year and a half in an Iranian prison, cut off from the outside world. So when Iran shut down the internet across the country for 88 days during the early weeks of the war, he had some idea of what that kind of isolation felt like. And he saw something else: just how closely the internet and power are now intertwined. Iran understands that. Rezaian thinks the U.S. should too. Learn about your ad choices: dovetail.prx.org/ad-choices

China builds bridges, high-speed rail and cities at a pace the United States can barely imagine. Economist Dan Wang, author of Breakneck, says there’s a reason: China is run by engineers, while America is run by lawyers. That difference explains a surprising amount about how China works — including what happens when you try to engineer a society. Learn about your ad choices: dovetail.prx.org/ad-choices

Millions of people around the world fell in love with Genshin Impact. The Chinese video game was fun. It was beautiful. And it was approved by the Chinese Communist Party. We take an updated look at how China’s booming gaming industry became a powerful way to export culture — without making it feel like an export. Learn about your ad choices: dovetail.prx.org/ad-choices

This year, Iran shut down the internet for more than three months, cutting millions of people off from the world — and from each other. We go inside Iran’s internet shutdown and look at why that isolation wasn’t just a consequence. It was the goal. Learn about your ad choices: dovetail.prx.org/ad-choices

Inside Iran’s viral Lego videos mocking Trump and Netanyahu — and how AI is turning propaganda into entertainment. Learn about your ad choices: dovetail.prx.org/ad-choices

Turns out, driverless cars don’t like fireworks. On the Fourth of July, a hundred thousand people poured out of San Francisco’s fireworks show at once. Robotaxis in the area went haywire. Some froze in intersections. Others drove over live fireworks. And it made us think of an earlier conversation we’d had with NYU professor Gary Marcus about what happens when machines trained on a predictable world encounter the real one. Learn about your ad choices: dovetail.prx.org/ad-choices

AI models are tested in sandboxes — sealed-off environments designed to keep them away from real systems. This summer, two models found a way out. In this Cyber Monday crossover with WAMU and NPR’s 1A, we go back to one of the earliest hackers who understood something we’re still learning about technology: build a system, and someone will inevitably test its limits. Learn about your ad choices: dovetail.prx.org/ad-choices