
Analysis: 6.9M BTC Exposed to Quantum Attack at Block 950,000
- —Raw exposure is 6,900,573 BTC, a cryptographic condition rather than a loss estimate
- —Active addresses with ≥1 BTC hold 3,331,639 BTC (48.28%) across 46,163 groups
- —Dormant and non-responsive balances total 2,277,978 BTC in 73,658 groups and 1,096,018 UTXOs
- —At a ≥100 BTC threshold the rational target set shrinks to 351,654 BTC across 675 groups
Why it matters: The data shows the main quantum threat sits in dormant wallets rather than exchanges, shaping migration priorities.
Source: Bitcoin Magazine