Russia Says Quantum Telephone ‘Impossible to Bug’

(RT.com) Russian scientists have recently presented Russia’s first phone with quantum protection of connection and said the device offers” perfect security. The IP phone demonstrated at the presentation ast week looked like an ordinary landline machine, but it employs quantum encryption protocols which make the phone impossible to bug.
The quantum encryption uses photons to generate a shared key between two collocutors. A potential eavesdropper would need to measure photons to hear the conversation. However, the nature of photons doesn’t allow somebody to measure them without changing their state, thus the collocutors will always know if a call is bugged. This provides an “unmatched level of confidentiality,” the developers said.