Ecc

Independent Researcher Wins Q-Day Prize with First 15-Bit ECC Quantum Attack on Record | Bitcoin Cryptography Under Scrutiny

Giancarlo Lelli broke a 15-bit elliptic curve private key using cloud quantum hardware and a variant of Shor's algorithm, claiming 1 Bitcoin from Project Eleven in the largest public quantum attack ever recorded against the cryptographic standard protecting over $2.5 trillion in digital assets

Jack Brennan · Apr 26, 2026