The emergence of quantum computing has sparked intense discussion about its potential impact on blockchain security. Experts suggest that XRP's architecture may provide better protection against quantum threats than Bitcoin's. This is due to the XRP Ledger's account-based system and features such as signing key rotation, which allows users to change their account keys without moving funds. Additionally, XRP's escrow feature with time locks provides an extra layer of protection.
In contrast, Bitcoin's blockchain has a larger portion of vulnerable tokens, with around 6.9 million BTC at risk, compared to XRP's 0.03% of its circulating supply. While both cryptocurrencies face theoretical risks, XRP's design and features may make it more resilient to quantum attacks.