Freezing 5.6M Dormant Bitcoin Could Spark Worst Day Ever

Dormant bitcoin held in unupgraded wallets could become the trigger for the worst single-day price crash Bitcoin has ever seen, not because of a hack, but because of a decision by the network itself. That is the warning coming from analysts and industry participants after Bitcoin developers released a proposal last month to freeze roughly 5.6 million BTC rather than leave them exposed to future quantum computing attacks. The debate is fierce, and it is splitting even the most committed Bitcoin maximalists.

What Is BIP-361 and Why Does It Matter?

Earlier this month, Jameson Lopp, a core Bitcoin developer and research analyst, and a team of contributors released Bitcoin Improvement Proposal 361, known as BIP-361. The proposal calls for phasing out Bitcoin’s current cryptographic signature scheme and potentially freezing any coins that fail to migrate to a quantum-resistant alternative before a deadline.

Lopp told reporters he already considers those 5.6 million BTC effectively lost. In his view, freezing them is preferable to letting quantum hackers steal them later. The coins in question sit in wallet addresses that have not been upgraded and have been dormant for more than a decade, making them the most exposed if and when functional quantum machines arrive.

The release of BIP-361 forced a debate that had been simmering in developer circles into mainstream crypto conversation. Most of the arguments break down along a single fault line: does protecting Bitcoin from quantum require bending its core principles?

Freezing Dormant Bitcoin Would Be Instant Financial Catastrophe

Samuel ‘Chad’ Patt, founder of Op Net, does not mince words. Freeze any coins, even ones everyone assumes are lost, and the market reprices Bitcoin the same day. ‘Freezing any coins, even lost ones, tells the market that all roughly 19.8 million BTC currently in circulation are conditionally owned,’ Patt said. ‘Institutional risk desks do not care about the reason, they care about the precedent.’

His argument is about mandate, not sentiment. Every fund manager who bought Bitcoin on a censorship-resistance thesis would be forced to sell, not because they want to, but because the asset no longer fits the risk profile they were hired to manage. That kind of forced unwind does not happen gradually. It happens in hours.

Patt put it plainly: if BIP-361 goes through as proposed, ‘bitcoin’s repricing would be instant, not gradual and would be the worst single day in bitcoin’s history, but not because of a hack, but because the network will have proven its core value proposition is negotiable.’

Institutional risk desks do not care about the reason, they care about the precedent.

Other Maximalists: The Quantum Threat Is Real, But So Is the Principle

Not every industry voice agrees the freeze is a catastrophic mistake, but the disagreements are sharp even among those who broadly share Bitcoin’s ideological core. Kent Halliburton, CEO and co-founder of SazMining, acknowledged that BIP-361’s intentions are good. His company operates data centers on four continents, and his clients’ ownership model depends entirely on Bitcoin’s unconditional property guarantee. ‘You don’t defend Bitcoin by breaking its core promise of inviolable property rights,’ he said, calling a protocol-level freeze ‘a contingency plan dressed up as confiscation.’

Khushboo Khullar, venture partner at Lightning Ventures, was equally direct. She argued that freezing dormant bitcoin, even those widely assumed to be lost, would require a contentious hard fork, violating the decentralized ethos that gives Bitcoin its value. ‘No one can unilaterally seize or freeze anyone’s coins,’ she said. ‘This directly undermines Bitcoin’s core principles of immutability and permissionlessness.’

Mati Greenspan, a market analyst and self-described maximalist, offered a different framing entirely. If quantum computers ever crack early Bitcoin wallets, he said, the result would not be a rollback or a freeze, it would be ‘the largest bug bounty in human history.’ His bottom line echoed what many maximalists prefer: doing nothing is better than doing something you cannot take back.

You don’t defend Bitcoin by breaking its core promise of inviolable property rights.

Does the Quantum Computing Threat to Bitcoin Leave Any Good Options?

The quantum computing threat to Bitcoin is not hypothetical anymore, it is a question of timing. Jason Fernandes, co-founder at AdLunam and a self-described pragmatic maximalist, agreed with Patt that a freeze would trigger a repricing. But he argued that a successful quantum attack would be far worse. ‘Institutions won’t just price precedent,’ he said. ‘They’ll price whether the system can survive a break in its core assumptions.’

Fernandes pushed back on the framing of the debate as a philosophical question about purity. ‘Quantum risk is an existential threat to the system, not a philosophical debate,’ he said. He pointed to SegWit and Taproot as examples of Bitcoin evolving when it had to. The protocol is conservative in how it changes, but it does change. And in his assessment, ‘the risk of inaction far outweighs any concern about precedent.’

He also made a blunter prediction: ‘I don’t think there is time; I think quantum will be upon us way faster than anybody thinks.’ That timeline pressure, more than any philosophical argument, is what gives BIP-361 its urgency, even for people who hate what it implies.

Ken Kruger, founder and CEO of Moon Technologies, framed it as a genuine dilemma with no clean exit. ‘It’s extremely challenging to build systems that are truly future-proof, and while Bitcoin has come quite close, quantum may pose a threat that requires tradeoffs participants won’t be happy with,’ he said. The choice, as he sees it, is binary: freeze funds or let them be stolen. ‘If solved elegantly, this could be a critical moment Bitcoin proves its resilience as a global monetary system.’

Fernandes ended on a point that cuts through the ideological noise. Most Bitcoin holders, maximalists or otherwise, are, in his view, ‘more interested in preserving capital rather than preserving some vague notion about what bitcoin is supposed to be.’ That may be the most honest read of where this debate actually lands when prices are at stake.

This article is for informational purposes only and does not constitute investment advice. Every investment and trading decision involves risk. Readers should conduct their own research before making any financial decisions.