Binance Chief Security Officer Jimmy Su said current quantum computers are not capable of breaking the cryptography behind major digital assets such as Bitcoin and Ethereum, describing the issue as a long-term security challenge that requires preparation rather than emergency action from holders today. In an Aug. 11 Binance post, Su said phishing, malware, social engineering, compromised credentials and weak wallet security remain the more immediate threats, and warned users against rushing into untested products marketed as quantum-proof. The debate has sharpened after Google Quantum AI said in March that a future attack on 256-bit elliptic curve cryptography could require fewer than 500,000 physical qubits under specified hardware assumptions, while the U.S. National Institute of Standards and Technology has already finalized ML-KEM, ML-DSA and SLH-DSA and is urging organizations to begin migrating toward post-quantum cryptography ahead of a planned 2035 removal of vulnerable algorithms from its standards. Funding and roadmaps across the sector reflect that shift: Strategy, BlackRock, Coinbase and six other firms pledged $15 million over three years for Bitcoin security research, Galaxy committed up to $5 million separately, Ethereum elevated quantum security in its roadmap, and Sui is targeting quantum-safe vaults in 2026 and native post-quantum account authentication in the first quarter of 2027, subject to audits and testing. Data from the first half of 2026 still points to operational and wallet security failures rather than quantum attacks as the main cause of losses.