Quantum Communication

from extremetech.com

"The typical method for sending secret messages is encryption, which allows two parties to exchange coded information that a bystander can’t interpret. But if you want to send a message that no one can even tell you’re sending, you need something else: covert communication. 'What covertness gives you is a much more secure way of communicating,' says quantum information researcher Boulat Bash of Raytheon BBN Technologies in Cambridge, Mass." It can already be done in the classical way, using photons, but now, apparently, it's about to go quantum: https://www.sciencenews.org/article/communicating-covertly-goes-quantum?tgt=nr