The rise of quantum computing has sparked concern about the potential vulnerability of legacy blockchains. However, experts suggest that XRP's architecture may be better equipped to withstand quantum attacks 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 provide an extra layer of protection. In contrast, Bitcoin's blockchain lacks a key rotation feature, leaving holders more vulnerable to quantum threats. While a significant portion of Bitcoin's circulating supply is at risk, XRP's exposure is relatively limited, with only 0.03% of its supply potentially vulnerable. Experts note that while XRP is not completely quantum-resistant, its design and features make it a more secure option than Bitcoin in the face of quantum threats.