The rise of quantum computing has sparked concerns about the potential risks to legacy blockchains. However, experts suggest that XRP's architecture may be better equipped to withstand these threats than Bitcoin's. This is due in part to the XRP Ledger's account-based system and features like key rotation, which allow users to change their signing key without moving funds.
Additionally, XRP's escrow feature with time locks provides an extra layer of protection. In contrast, Bitcoin's blockchain lacks a key rotation feature, leaving holders more vulnerable to quantum attacks. While both cryptocurrencies have their risks, XRP's exposure appears to be significantly lower, with only 0.03% of its circulating supply potentially at risk, compared to Bitcoin's 35%.