The rise of quantum computing has sparked concerns about the potential risks to 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 and features like key rotation, which allows users to change their signing key without moving funds. Additionally, XRP's escrow feature with time locks provides an extra layer of security.
In contrast, Bitcoin's larger scale and lack of key rotation feature may make it more susceptible to quantum attacks, with a significant portion of its circulating supply potentially at risk. While the threat is still largely theoretical, experts point out that XRP's design may provide a relative advantage in terms of security.