It is believed RSA-2048, one of the most widely used forms of PKI encryption, could be cracked with as few as 2,000 logical qubits. At the rate the technology is developing, we anticipate this level of quantum computing being feasible within the decade, and perhaps in as little as five years.

We could talk about how exactly this works all day, but the result is a machine that makes the world’s best supercomputers look like pocket calculators.

One of the most striking examples is Google’s Sycamore, a quantum computer which completed a calculation so complex it is believed it woul...

However, the next two years will see the launch of quantum satellites using a new protocol which solves all of the known problems of Satellite QKD. Those satellites will then take over the task of distributing the root source keys into data centres, and at that point the entire network end to end...