"Researchers Demonstrate 'Unconditionally Secure' Quantum Digital Payments"

New research from the University of Vienna may soon enable a completely secure, unhackable, and private digital payment system. In a recently published paper titled "Demonstration of quantum-digital payments," a team of researchers from the Vienna Center for Quantum Science and Technology demonstrated what may be the first "unconditionally secure" digital transaction system based on quantum mechanics. The researchers accomplished this by encrypting a payment transaction using a pair of quantum entangled photons. Through this entanglement, in which any change in the state of one photon is reflected in the state of the other photon, even when separated by distance, the researchers were able to ensure that the very nature of quantum mechanics thwarts any attempts to modify the transaction. This article continues to discuss the research on the first unconditionally secure digital transaction system. 

Cointelegraph reports "Researchers Demonstrate 'Unconditionally Secure' Quantum Digital Payments"