🔒 Quantum breakthroughs make traditional elliptic curves (ECDSA) vulnerable to Shor's algorithm, allowing attackers to 'harvest first and decrypt later'. 💡 Zero-knowledge proofs combined with post-quantum cryptography (hash/lattice) can gradually replace curves and iteratively upgrade. ⚡ Quantum randomness provides more unpredictable fairness, which can be used for validator elections and decentralized lotteries. ⏱️ The key is to immediately deploy post-quantum ZK, turning threats into long-term advantages.