Attacking bitcoin mining with a quantum computer would require the energy of a star, academics say
One paper finds that attacking the bitcoin blockchain through quantum mining would demand the energy output of a star. Another replicates every major "quantum factoring breakthrough" using a 1981 home computer and a dog. source https://www.coindesk.com/tech/2026/04/08/attacking-bitcoin-mining-with-a-quantum-computer-would-require-the-energy-of-a-star-academics-say