Vitalik Buterin Warns Quantum Computing Could Break Blockchain Cryptography by 2028

Ethereum co-founder Vitalik Buterin warned that quantum computers may crack the cryptographic protections securing Bitcoin and Ethereum wallets by 2028. He told developers that elliptic curve cryptography faces an existential threat from advancing quantum hardware. Industry experts and researchers called for urgent preemptive protocol upgrades to prevent future vulnerabilities.