Bitcoin Quantum-Break Catastrophe Is Pure FUD, Says Gabor Gurbacs

A heated debate erupted on X this weekend after Gabor Gurbacs, founder of Pointsville and strategic advisor to Tether, dismissed growing fears about Bitcoin’s vulnerability to quantum computing. In a series of posts, Gurbacs called the notion of a “ quantum doomsday ” for Bitcoin “pure FUD,” arguing that Bitcoin’s cryptographic foundations are already resilient and adaptable enough to survive future advances in quantum technology. “There’s a lot of FUD around Bitcoin’s quantum risk,” Gurbacs wrote . “The fact is that Bitcoin’s security is anchored in hash-based proof-of-work, which remains quantum-resistant. Quantum doesn’t break Bitcoin.” Bitcoin Is “Quantum-Resilient By Design” Gurbacs pointed to the distinction between Bitcoin’s hash-based consensus and its signature scheme, arguing that the consensus layer—secured by SHA-256—is already resistant to quantum attacks. Grover’s algorithm only provides a quadratic speed-up, he said, which does not undermine Bitcoin’s proof-of-work. The primary theoretical weakness, he acknowledged, lies in Bitcoin’s ECDSA...

https://bitcoinist.com/bitcoin-quantum-break-pure-fud-gabor-gurbacs/