The emergence of quantum computing has sparked concerns about the potential risks it poses to legacy blockchain systems. According to experts, XRP's architecture may be better equipped to handle these threats than Bitcoin's. This is due in part to the XRP Ledger's account-based system, which allows for the rotation of signing keys without requiring a change of account. Additionally, features like escrow with time locks provide an extra layer of protection against quantum attacks.
In contrast, Bitcoin's blockchain lacks a key rotation feature, leaving holders more vulnerable to potential quantum threats. While both XRP and Bitcoin face some level of risk, the scale and nature of the vulnerability differ significantly between the two. For instance, approximately 0.03% of XRP's circulating supply is potentially at risk, whereas around 35% of Bitcoin's supply may be vulnerable.
The difference in vulnerability stems from the distinct design approaches and features of each blockchain.