The advent of quantum computing has sparked concerns about the potential vulnerability of legacy blockchains. Experts suggest that XRP's architecture may be better equipped to withstand quantum 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 transaction, thereby reducing exposure to quantum attacks.
Additionally, features like escrow with time locks provide an extra layer of protection. In contrast, Bitcoin's lack of key rotation and larger proportion of vulnerable coins make it more susceptible to quantum risks. While both cryptocurrencies face theoretical risks, the scale and nature of the threat differ significantly between them.