Mexico City has one of the most ambitious and sophisticated video surveillance systems in the world. But it hasn’t stopped crime.

Sean Quinn was once a billionaire folk hero, but then things turned very dark in the borderlands.

How a hacker shamed and humiliated high school girls in a small New Hampshire town, and how they helped take him down.

They’re known as the Jills. They’re two of America’s top realtors, selling the glitziest mansions in Miami. Then a place went missing—and everyday greed blossomed into full-blown extortion.

Teo Brank found a lucrative side hustle arranging escorts for sex parties. But when his business soured, he turned to extortion.

A reclusive hacker wages a shadow war against payday loan cyber-extortioners.

Tracking cyberextortionists and their roving swarms of bots.

In a dark echo of Rear Window, a wheelchair-bound hacker seizes control of hundreds of webcams, most of them aimed at young women’s beds.

Steven Seagal spent a few years in Japan and  returned to open a dojo in L.A.. Jules Nasso was the wiseguy producer behind all of Seagal’s hits. When it all fell apart, Seagal reputedly offered money for a contract killing, and Nasso may have been caught on tape arranging to extort Seagal through the Gambino Family.

Step 1: awkward high school senior passes himself off as a flirtatious female student online. Step 2: he cons his male classmates into e-mailing him sexually explicit images of themselves. Step 3: extortion.