First it was the Titanic’s unsinkable ship. Then it was Oracle’s “unbreakable” campaign. Now, it seems the Pentagon’s Defense Advanced Research Projects Agency is claiming it has built a “hack-proof drone,” according to Jaikumar Vijayan of ComputerWorld.com.

Kris Osborn, of the military blog, Defense Tech, reports the software was designed to “thwart cyberattacks.” He says the project has been going on for several years and originated at the University of California, San Diego, and the University of Washington. Program manager Kathleen Fischer told Osborn, “the software is mathematically proven to be invulnerable to large classes of attack.”