As IT PRO reported earlier this month, a loophole involving the use of using custom bright illumination to 'blind' quantum key distribution system detectors could allow attackers to gain control and copy the encryption key without creating any disturbance and so without alerting the system to the presence of an attacker.
It's not all bad news for the quantum security world though as Serdar Cabuk in Deloitte's security team points out. Smaller and cost-effective devices that implement quantum cryptography may eventually replace traditional security schemes that rely on PINs and passwords.
