Secret codes. Legal threats. Betrayal. How one couple built a device to fix McDonald’s notoriously broken soft-serve machines—and how the fast-food giant froze them out.

At 22, he single-handedly put a stop to the worst cyberattack the world had ever seen. Then he was arrested by the FBI.

How digital detectives unraveled the mystery of Olympic Destroyer—and why the next big attack will be even harder to crack.

“It was a clusterfuck of clusterfucks.”

The origins of the misunderstood agency.

The men who are trying to find out if wireless carjacking is possible.

USB sticks bearing digital video are the new radio.

The transcript of chats between Silk Road boss Ross Ulbricht and a man he believes to be a Hell’s Angel who agrees to supply “hitters” to carry out 5 assassinations.

On Amir Taaki and Cody Wilson, two anarchists with a history of creating controversial software, and their dream of an economy based on untraceable, uncontrollable money.

The Bitcoin ghostwriter who wasn’t.

A profile of a virtual kingpin.

The unedited transcript of an interview with Julian Assange for the cover story of Forbes’ December issue. His next target? A major U.S. bank.