The rise of quantum computing has sparked concerns about the potential risks to blockchain security. Experts suggest that XRP's architecture may be better equipped to handle these threats than Bitcoin's. The XRP Ledger, an open-source decentralized blockchain, facilitates cross-border transactions through the XRP token. A recent audit found that around 300,000 XRP accounts, holding 2.4 billion XRP, have never sent funds and are therefore quantum-safe by default.
However, dormant whale accounts that have transacted in the past may still be vulnerable. The XRP Ledger's key rotation feature allows users to swap their signing key without moving funds, reducing the risk of quantum attacks. Additionally, the escrow feature with a time lock provides an extra layer of protection.
In comparison, Bitcoin's blockchain appears more vulnerable to quantum threats due to its larger scale and lack of key rotation feature. Approximately 6.9 million BTC, nearly 35% of Bitcoin's circulating supply, may be at risk. While Bitcoin developers are working on proposals to develop quantum resistance, XRP's features may provide a relative advantage in terms of security.