Na era pós-quântica, Circle antecipou-se; seu white paper abordou todos os riscos de validação de assinatura, contratos inteligentes e comunicação de rede, ajustando o ritmo de transição de acordo com a prontidão do ecossistema e as tendências regulatórias, de forma pragmática.

Wu Shuo learned that the official Arc issued a statement stating that Circle released a post-quantum security white paper, proposing a phased security roadmap for Arc, USDC, smart contracts, validators, and infrastructure systems. The white paper states that quantum computing could pose long-term risks to blockchain signatures, validator keys, smart contracts, and network communication. Circle plans to support SLH-DSA signature verification in Arc and allow USDC smart contracts to continue supporting ECDSA interactions during the transition period, while enabling post-quantum signatures. Circle indicated that the final switch time will depend on ecosystem readiness, regulatory requirements, and quantum risk assessments, and the related roadmap may still be adjusted.