Time is Running Out for Bitcoin to Counter Quantum Threat

Not all aspects of bitcoin are vulnerable to quantum computers. The process of bitcoin mining, which utilizes a type of math known as hashing, is secure from quantum threats. The blockchain ledger and the rule that new bitcoins can only be created through mining would remain intact in the event of a quantum attack. However, ownership of bitcoins is at risk. Bitcoin wallets rely on a different kind of math that converts a private key into a public address. This math is easily reversible with a quantum computer, potentially allowing unauthorized access to funds. Approximately 6.9 million bitcoins, roughly one-third of all mined bitcoins, are stored in wallets with publicly visible keys, making them susceptible to quantum attacks. This includes the 1 million bitcoins owned by Satoshi Nakamoto, the pseudonymous creator of bitcoin. The 2021 Taproot upgrade inadvertently exposed more wallets to potential quantum threats. While there are proposals to address the issue, such as BIP-360 and a detection system from BitMEX Research, none have gained widespread support from bitcoin's core developers. The lack of a centralized authority and formal governance process makes it challenging for bitcoin to implement effective solutions. In contrast, Ethereum has a formal quantum-resistant program and a more structured approach to addressing the quantum threat. The clock is ticking for bitcoin to find a solution before the threat becomes a reality.