In March, artist and programmer Brannon Dorsey became interested in a retro web attack called DNS rebinding, teaching himself how to illicitly access controls and data by exploiting known browser weaknesses. It's a vulnerability that researchers have poked at on and off for years—which is one reason Dorsey couldn't believe what he found.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and society.