John Reed Stark (존 리드 스타크), a former U.S. Securities and Exchange Commission enforcement lawyer, warned that rapid advances in quantum computing mean time is running out for the cryptocurrency industry. On Aug. 7, blockchain outlet U.Today reported that he argued the broader financial sector, including long-term Bitcoin holders, should take quantum risk seriously.

Stark cited two recent examples. Arvind Krishna said in a CNBC interview that within 3 to 4 years everyone should be highly vigilant about the quantum threat. Lee Reiners of Duke University argued that financial regulators should prepare contingency plans for digital assets vulnerable to breakthroughs in quantum technology.

Stark said he was especially concerned that crypto infrastructure is becoming more deeply embedded in traditional finance. He said quantum-attack-vulnerable blockchain infrastructure is being integrated further into the existing financial system alongside spot ETFs, bank custody and stablecoin legislation.

He drew a distinction between the current situation and the past Y2K computer bug episode. He argued that the avoidance of major disruption then was due not to luck but to strong regulatory enforcement. The SEC strongly enforced Y2K-related disclosures and corrective actions in 1998 and 1999 for registered entities, especially brokerages and clearing firms, and national exchanges.

Stark, however, criticised the SEC for failing to respond properly to quantum computing risks. He said SEC Chairman Atkins had sided with the industry before his appointment, including through advisory work for the Token Alliance and cryptocurrency companies.

Debate over the quantum threat is also continuing within and outside the crypto industry. Last week, D-Wave CEO Alan Baratz said sufficiently advanced quantum computers would eventually outperform the hardware used for Bitcoin mining.

The industry has not stopped responding. Galaxy Digital launched a Bitcoin quantum readiness initiative on July 21, and Blockstream on July 27 presented quantum security as the first major research task for the Bitcoin Research Consortium. By contrast, JAN3 CEO Samson Mow warned against rushing to adopt post-quantum signature systems. He said immature cryptographic systems could expose Bitcoin more to AI-assisted attacks.