The rise of quantum computing has sparked concerns about its potential impact on blockchain security. Experts suggest that XRP's architecture may provide better protection against quantum threats than Bitcoin's. This is due in part to the XRP Ledger's account-based system, which allows for signing key rotation, enabling users to change their account keys without moving funds.
Additionally, features like escrow with time locks offer further defense against quantum risks. In contrast, Bitcoin's larger exposure to quantum vulnerabilities is attributed to its earlier transaction formats and the lack of a key rotation feature, making it more challenging for holders to protect their funds. While both cryptocurrencies face theoretical risks, XRP's design and features may provide a higher level of security against potential quantum attacks.