The Chinese satellite Micius has sent a quantum-encrypted dataset between China and Austria.
It can make data secure and virtually impossible to hack.
The message is sent as individual photons that are in quantum superposition states. Meaning in data terms, those photons represent both (1) and (0) at the same time. The message gets coded and decoded through devices at each end. They essentially collapse each incoming photon into the required state, (1) or (0) . If an unauthorized person even tries to intercept the message along the way, the very act of observing it will cause the superposition of each photon to collapse into a random state, garbling the message for the hacker and alerting the intended recipient to the hack.
As you can see in this video the act of observing will cause the photon to change its position.
Looks like China is ahead of everybody in this matter.
http://en.ustc.edu.cn/news/201801/t20180119_290740.html
