21.5% of BTC supply has exposed public keys via address reuse: Glassnode

A significant share of Bitcoin with exposed public keys stems from address reuse, and that amount is rising, according to on-chain analytics firm Glassnode. Over the past year, BTC held in reused addresses increased about 14.2% to 4.33 million from 3.79 million, equivalent to 21.5% of Bitcoin’s circulating supply. Reusing Bitcoin addresses can increase the likelihood of public key exposure, potentially making those holdings more vulnerable to future quantum computer attacks.