Google’s Willow quantum processor reignited debates about crypto’s quantum vulnerability. Current blockchain encryption relies on mathematical problems quantum computers could theoretically solve. However, experts note Willow remains far from breaking SHA-256 or elliptic curve cryptography used in Bitcoin and Ethereum.
The crypto community is proactively developing quantum-resistant algorithms, with several projects testing lattice-based cryptography. Major chains likely will implement hybrid security models gradually, maintaining backward compatibility. This transition poses significant technical challenges but isn’t immediately urgent.
Long-term, quantum computing could paradoxically strengthen blockchain through advanced optimization algorithms. The focus remains on evolutionary upgrades rather than existential threats, with hardware wallets and exchanges beginning quantum-readiness assessments.
Read also: Quantum Computers vs Cryptocurrencies: What is the Risk?