Glassnode: Public Keys for 35.4% of Bitcoin Supply Already Exposed, May Become Targets for Quantum Computer Attacks

November 11 — According to the latest Glassnode data, the public keys for about 35.4% of the Bitcoin supply (7.12 million BTC) are already visible on-chain, and this is the portion that future quantum computers could potentially attack. Address reuse accounts for 25.8% and exchanges for 11.6%. The exposure ratio has climbed steadily from 24.8% in early 2021, and the risk exposure under the quantum computing threat is expanding. Glassnode noted that moving these coins to new addresses would eliminate this exposure risk.