Ki Young Ju, the founder of CryptoQuant, has raised concerns about the vulnerability of Bitcoin (BTC) to quantum computing threats. He suggests that to protect against potential theft by quantum machines, old Bitcoin addresses holding billions in BTC should be frozen.

Ju warned that this risk is significant as the crypto community has had difficulties in reaching a consensus on protocol changes historically, which could complicate efforts to address the issue.

Quantum Risk Mitigation

In a recent post on social media, Ju articulated the universal risk to anyone holding BTC in older address formats. According to him, these assets could be compromised either through freezing mechanisms or outright theft if quantum technology advances sufficiently to decode Bitcoin’s encryption. He pointed out that even private keys kept under secure storage could become vulnerable if users do not act on necessary protocol updates promptly.

“In simple terms, coins that appear perfectly safe today could become spendable by an attacker tomorrow,” he cautioned.

To counter these growing threats, Ju proposed freezing old Bitcoin addresses, which include the addresses holding Satoshi Nakamoto’s 1 million BTC, to prevent them from being hacked or breached.

“Would you support freezing dormant coins, including Satoshi’s, to save BTC from quantum attacks?” Ju queried.

Bitcoin’s current security relies heavily on cryptographic systems deemed unbreakable by traditional computers. However, the emergence of quantum computers alters this paradigm. A sufficiently powerful quantum machine could theoretically decipher a private key from a public one if that public key has been exposed.

Once the public key is made public on a blockchain, the associated risk becomes a permanent concern. Ju estimates that approximately 6.89 million BTC are currently exposed to such vulnerabilities, with around 3.4 million BTC being dormant for over ten years, including Satoshi’s holdings. With such immense value at stake, the incentive for hackers intensifies, especially if quantum technology becomes more accessible.

Community Consensus Obstacles

Despite the technical feasibility of freezing dormant Bitcoin, achieving a consensus among crypto advocates remains a significant hurdle. This discrepancy stems from the rapid pace of solutions compared to the slow process of reaching social agreements.

Historically, the Bitcoin community has grappled with protocol changes, as seen in protracted debates over block sizes that resulted in hard forks and failed upgrade attempts like SegWit2x. Ju expressed that freezing coins to thwart quantum threats would likely encounter similar resistance due to its potential conflict with the foundational principles of decentralization and user autonomy within cryptocurrency.

He also warned that the absence of unanimous agreement could lead to competing Bitcoin forks as quantum risk technology evolves. Ju emphasized that the real challenge lies not in whether the quantum threat will emerge in the next five to ten years, but rather if the cryptocurrency community can unite on a strategic response in time.

In discussions regarding the impact of quantum threats on cryptocurrencies, David Hoffman, co-founder of Bankless, expressed confidence that Ethereum could remain functional even in the event of BTC failure, stating that it has been adequately prepared for such challenges.