Quantum stuff again? It doesn't exist! Quote: "Finally, we calculate the number of physical qubits required to break the 256-bit elliptic curve encryption of keys in the Bitcoin network within the small available time frame in which it would actually pose a threat to do so. It would require 317 Ć 106 physical qubits to break the encryption within one hour using the surface code, a code cycle time of 1 μs, a reaction time of 10 μs, and a physical gate error of 10-3. To instead break the encryption within one day, it would require 13 Ć 106 physical qubits. In other words: no time soon. Not even remotely soon. " Cite them Right Reference: Schneier, B. (2022) āBreaking 245-bit elliptic curve encryption with a quantum computerā, Schneier on Security, 9 February. Available at: https://www.schneier.com/blog/archives/2022/02/breaking-245-bit-elliptic-curve-encryption-with-a-quantum-computer.html Accessed 21 Mar 2026.