Just over 10,000 Bitcoin — out of nearly 20 million in circulation — sits in wallets actually exposed to a quantum attack.
That number comes from CoinShares, a crypto asset management firm, which found in February that only 10,230 coins are both vulnerable to quantum computing and tied to wallet addresses with publicly visible cryptographic keys.
At current prices, that amounts to close to $730 million — a sum the firm described as resembling a routine trade, not a market crisis.
A Steel Frame Takes Shape In ChicagoScientists say that capacity is, in theory, sufficient to crack the type of encryption protecting Bitcoin wallets.
PsiQuantum says the facility is designed to support fault-tolerant quantum computing and serve as infrastructure for next-generation AI systems.
What Would Actually Be At RiskBut experts have long noted that raw qubit count is only part of the equation. Error rates and system stability matter just as much.
Not all Bitcoin wallets face equal exposure. Coins held in addresses that have never made a transaction — known as unspent transaction outputs, or UTXOs — are considered most at risk, particularly those whose public keys have been exposed on the blockchain. Many of those wallets date back to Bitcoin’s earliest days.
Developers Are Already Working On A FixBitcoin developers have been debating how to respond. One option on the table is a hard fork — a fundamental change to the network’s code — to introduce post-quantum cryptography.
A co-author of BIP-360, a proposal aimed at making Bitcoin quantum-resistant, said that the upgrade could take as long as seven years to fully implement.
Experts in the field say a genuine quantum threat to Bitcoin is still at least a decade away.
For now, construction continues in Chicago — 500 tons of steel and counting.
Featured image from Unsplash+/Alex Shuper, chart from TradingView


















