To counter the possibility of quantum computers breaking traditional encryption systems used today in communications,#Chinahas deployed the first quantum encryption system and conducted a quantum-encrypted communication over a distance of more than 1,000 kilometers.

The system relies on a new network to distribute encryption keys using concepts of #quantummechanics, so that any breach in the network is detected immediately. It also uses encryption techniques that future#quantumcomputers will find difficult to crack.

https://teqnoverse.com/technology/china-q-communication-system/

Proper preparation for quantum encryption against future breaches, which we have warned about.