Crypto news report · source clearly identified

Researchers Halve Quantum Attack Timeline for Bitcoin and Ethereum

New research shows humans and AI agents outperforming Google's recent benchmark on a key calculation for Shor’s algorithm, suggesting the quantum threat to major cryptocurrencies may be farther off than previously thought.

A recent paper shared with CoinDesk reports that both human participants and AI agents have achieved faster results on a core computation used in Shor’s algorithm than Google’s March benchmark. This development effectively reduces the estimated timeline for a viable quantum attack on Bitcoin and Ethereum by roughly 50%.

Key Findings

  • Human and AI performance surpassed Google’s prior result on the critical calculation.
  • The improved performance shortens the projected window for a quantum computer capable of breaking Bitcoin and Ethereum’s cryptographic safeguards.
  • The study introduces a new variable into the ongoing assessment of quantum risk for blockchain networks.

Implications for Crypto Security

The findings suggest that the urgency to transition to quantum‑resistant cryptography may be less immediate than earlier estimates indicated. However, the research also highlights the evolving nature of the threat landscape, emphasizing the need for continued monitoring and proactive security upgrades.

Next Steps for the Industry

  1. Monitor further advancements in quantum computing and related algorithmic performance.
  2. Accelerate research into post‑quantum cryptographic solutions for blockchain protocols.
  3. Engage with standards bodies to align future upgrades with emerging security requirements.

Source & attribution

News Source

Publisher
CoinDesk
Original date
September 10, 2026, 1:00 PM
Original headline
Crypto researchers cut Bitcoin and Ethereum quantum attack estimate by 50%
View original report ↗