The rise of quantum computing has sparked concerns about the potential risks it poses to legacy blockchains. However, experts believe that XRP's architecture makes it more resilient to these threats than Bitcoin. 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.
In contrast, Bitcoin's blockchain is more vulnerable, with a significant portion of its early coins mined using a format that directly exposes public keys. This, combined with the lack of a key rotation feature, leaves Bitcoin holders more susceptible to quantum attacks. While the threat is still largely theoretical, it highlights the need for blockchain developers to prioritize quantum resistance.