Investigators say that Arion Kurtaj’s life in cybercrime began at age 11, and ultimately led to his participation in the hacks of major companies like Nvidia, Microsoft, and Uber. WSJ’s Robert McMillan explains how Kurtaj’s case has brought worries about a new breed of fearless young hackers. Further Reading: -This Teenage Hacker Became a Legend Attacking Companies. Then His Rivals Attacked Him.  -Hackers Leaked ‘Grand Theft Auto’ Footage, Rockstar Games Says  Further Listening: -Hack Me If You Can, Part 1: The Making of a Russian Hacker  -How North Korea’s Hacker Army Stole $3 Billion in Crypto  Learn more about your ad choices. Visit megaphone.fm/adchoices