Glassnode reports 7.12 million BTC exposed to quantum risk through visible public keys

Bitcoin ‘s vulnerability to future quantum computing attacks is back in the spotlight following new figures from Glassnode, an on-chain analytics provider. According to Glassnode, 7.12 million BTC—equal to 35.4% of all issued Bitcoin—is currently protected by public keys already visible on-chain. The November 10 update, using the firm’s latest methodology, provides a quantified view of how much of Bitcoin’s supply might be at theoretical risk should quantum computers advance far enough to break current cryptographic security. Glassnode stated that 25.8% of all Bitcoin addresses face exposure due to address reuse, with 11.6% of supply held on exchanges falling under this category. The exchange figure is included within the overall figure for reused addresses, and is not additional.

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