量子コンピューターが「仮想通貨を保護する暗号」を想定よりはるかに少ないリソースで解読できるとGoogleの研究者が警告 - GIGAZINE

This page reports that Google's research team warns that quantum computers could break elliptic curve cryptography protecting cryptocurrencies like Bitcoin with significantly fewer resources than previously assumed—approximately one-twentieth of the required quantum bits. The newly designed quantum circuit requires fewer than 500,000 physical qubits and implements Shor's algorithm more efficiently. Google plans to transition to post-quantum cryptography by 2029, urging the cryptocurrency community to develop migration plans urgently.