Quantum-Proof Blockchain Security May Come Down to Better Math, Not Quantum Machines

For years, quantum computing has sounded like a distant problem for the blockchain industry—something to worry about once machines become powerful enough to crack today’s cryptography. Muriel Médard, an MIT professor and Optimum co-founder, argues that the more urgent answer is already sitting in classical mathematics.That matters because some of the most sensitive information being encrypted today could be collected now and decoded later. Known as “harvest now, decrypt