Bitcoin Faces Quantum Computing Threat: Can It Adapt Before It's Too Late?

While not all aspects of bitcoin are vulnerable to quantum computers, the ownership of coins is at risk due to the type of math used to protect wallets. A quantum computer can potentially break this math, allowing an attacker to steal coins. Approximately 6.9 million bitcoin, including those owned by Satoshi Nakamoto, are at risk due to exposed public keys. The 2021 Taproot upgrade inadvertently increased the problem by publishing keys for any bitcoin spent since its activation. To address this threat, bitcoin developers must coordinate a significant security upgrade, but the network's governance structure and culture of resisting change make this a challenging task. Ethereum, on the other hand, has been working on a formal quantum-resistant program since 2018 and has made significant progress. Bitcoin developers have proposed various solutions, but none have gained broad support. The clock is ticking for bitcoin to prevent a quantum threat, and it remains to be seen whether the network can adapt before it's too late.