The most immediate applications of the tech, he said, are in cybersecurity. “If you can use these to send your 0s and 1s, or use them as a way to create a key for your encryption, it’s much, much harder to hack them,” Namazi said. “If something happened to one of your photons, the other one immediately knows. And there’s nothing a hacker can do about that because there is no way to replicate this kind of connection.”