XRP demonstrates significantly lower exposure to quantum threats than Bitcoin, with only 0.03% of its supply in wallets with revealed public keys. This contrasts sharply with Bitcoin, where up to 37% of its supply could be vulnerable due to address reuse and structural factors. XRP's design, which allows key rotation and does not require public key exposure before spending, enhances its security against potential quantum threats. According to XRPL validator Vet, approximately 21 million XRP are in wallets with exposed public keys, primarily belonging to dormant whale accounts. In contrast, around 300,000 XRP accounts holding 2.4 billion XRP remain unexposed, maintaining a "quantum-safe" status by default. Bitcoin, however, faces broader exposure due to its transaction structure, with early P2PK outputs and reused addresses contributing to potential vulnerabilities. Despite these differences, experts emphasize that current quantum threats remain theoretical, as no existing quantum computer can compromise blockchain cryptography. Both XRP and Bitcoin continue to operate without immediate threat concerns, though XRP's built-in security features, such as key rotation and escrow, offer additional protection.