begood Posted June 21, 2011 Report Posted June 21, 2011 (PhysOrg.com) -- In quantum cryptography, scientists use quantum mechanical effects to encrypt and then communicate confidential information. Although quantum cryptography codes are unbreakable in principle, even the best techniques have loopholes in practice that scientists are trying to address. In a recent study, physicists have exposed one of these loopholes by hacking a quantum code, which involved copying a secret quantum key without being detected.Quantum eavesdropper steals quantum keys Quote
