The rise of quantum computing has sparked concerns about the potential vulnerability of legacy blockchains. However, experts suggest that XRP's architecture may provide better protection against quantum threats than Bitcoin's. The XRP Ledger, an open-source decentralized blockchain, facilitates cross-border transactions through the XRP token.
A key factor in XRP's relative security is its account-based design, which allows for signing key rotation. This feature enables users to change their signing key without moving funds, effectively locking out anyone holding the old key.
Additionally, XRP's escrow feature with time locks provides an extra layer of protection, as funds locked in escrow are safe due to logical constraints rather than cryptography. In contrast, Bitcoin's blockchain lacks a key rotation feature, leaving holders more vulnerable to quantum attacks. With approximately 6.9 million BTC potentially at risk, compared to just 0.03% of XRP's circulating supply, the quantum threat appears more significant for Bitcoin. While Bitcoin developers are exploring proposals for quantum resistance, XRP's existing features may provide a level of protection against these emerging threats.