Bitcoin's Quantum Exposure Reaches Alarming Levels

Bitcoin's cryptographic vulnerabilities have become a measurable reality with the release of new data from blockchain analytics firm Glassnode.

The data reveals that approximately 6.04 million BTC (30.2% of the issued supply) currently have their public keys visible on-chain, exposing Bitcoin to quantum risk.

Glassnode separates Bitcoin's quantum-exposed supply into two categories: structural exposure and operational exposure.

Structural exposure accounts for 1.92 million BTC, while operational exposure is the larger share, totaling 4.12 million BTC.

Exchange-related balances account for a significant portion of operationally exposed Bitcoin, with 1.66 million BTC (8.3% of total supply) being exchange-related.