Digital security currently relies on difficult equations to protect data. For example, when you use a credit card online, the ...

Researchers in the Netherlands are applying quantum physics in an attempt to create fraud-proof credit cards and ID cards. The approach, which they call Quantum-Secure Authentication (QSA), centers on ...

A rudimentary quantum debit card that can be loaded with unforgeable quantum money has been made from extremely cold atoms and particles of light. We’ve glimpsed the secret quantum landscape inside ...