Yet quantum cryptography, according to some engineers, is not without its faults. In a preprint submitted late last week to arXiv, Hoi-Kwong Lo and colleagues at the University of Toronto, Canada, claim to have hacked into a commercial quantum cryptography system by exploiting a certain practical “loophole”.
So does this mean high-profile users of quantum cryptography – banks and governments, for example – are in danger of being eavesdropped after all? (more)
