Princeton, MIT crack code to intercept underwater spy signals from the air

Princeton and MIT researchers have discovered a method to intercept underwater communications from the air using basic radar equipment. The technique decodes surface vibrations created by underwater acoustic signals. Tests at Lake Carnegie showed 97.58% accuracy in determining modulation type, even with natural disturbances. This breakthrough poses security risks for underwater transmissions from various sources. The researchers used commercial drones and radar to demonstrate the vulnerability, emphasizing the need for enhanced security in underwater communication networks.