The emergence of quantum computing has sparked concerns about the security of legacy blockchains, with Google warning that a powerful enough machine could potentially exploit them. For XRP holders, experts suggest that its architecture provides better protection against quantum attacks than Bitcoin's. This is due to the XRP Ledger's open-source, decentralized blockchain and features such as key rotation, which allows users to change their signing key without moving funds.
Additionally, the escrow feature with a time lock provides an extra layer of security. In contrast, Bitcoin's blockchain lacks a key rotation feature, leaving holders more vulnerable to quantum attacks.
While Bitcoin developers are working on proposals to develop quantum resistance, the current situation suggests that XRP may be better positioned to withstand quantum threats.