Glassnode says 35.4% of Bitcoin supply has exposed public keys

Glassnode reported that 35.4% of Bitcoin’s total supply now sits in addresses with publicly exposed keys, flagging a long-term quantum-security risk for the network. The finding covers coins whose spending conditions reveal public keys on-chain, a set that grows as wallets reuse addresses and older output types remain in use. The exposure matters because a sufficiently powerful quantum computer could in theory derive private keys from revealed public keys, putting a meaningful share of BTC’s supply at risk. Watch for movement toward quantum-resistant address standards, wallet migration campaigns, and debate over whether unspent, exposed coins should be frozen or left to holders to move.