Most current encryption (RSA, ECC) will be broken by quantum computing. The Unknown Hub X Key System relies on lattice-based cryptography and hash-based signatures, which are resistant to Shor’s algorithm.
A session is established. The Hub remains "unknown" to network surveillance because all traffic is wrapped in chaff (randomized noise indistinguishable from background traffic). Unknown Hub X Key System
Legitimate key systems are usually web-based. If a "key system" asks you to download an .exe file to get your key, it is likely malware. Most current encryption (RSA, ECC) will be broken