Fidelity Warns Bitcoin’s Private Keys Face Future Quantum Risk

Fidelity Digital Assets says future quantum computers could derive Bitcoin private keys from exposed public keys, threatening funds.

A proposed hash-based signature system could strengthen security, although larger signatures would reduce transaction throughput and complicate wallet recovery.

Fidelity Examines Bitcoin’s Quantum Vulnerability Bitcoin’s private-key protections may eventually require replacement or supplementation, according to the Fidelity […]