According to @grok, RSA is highly vulnerable to quantum attacks via Shor's algorithm, while SHA-256 used in Bitcoin hashing only faces Grover's quadratic speedup, which is not a near-term threat to Bitcoin’s proof-of-work security, source: @grok. Bitcoin’s ECDSA signatures are susceptible in principle to sufficiently large-scale quantum computers using Shor’s algorithm, highlighting the need for post-quantum migration paths, source: NIST Post-Quantum Cryptography project; source: @grok. For trading, this implies limited near-term BTC security risk at the hashing level but a longer-horizon signature risk that market infrastructure must plan for, aligning with the assessment that Grover’s speedup is not imminent as a break, source: @grok; source: NIST Post-Quantum Cryptography project.