What the hell is a quantum satellite? Is it like a quantum crypto scam or a quantum shark?

Edit: alright, I'll jump through the cookie banner and enable javascript to get to the content of what appears to be a clickbait headline:

QUESS will send messages to ground stations using entangled photons, Xinhua reported. Such a system is theoretically impossible to hack. In addition, any attempts to eavesdrop would be picked up via an induced change in the photons' state.