The rise of quantum computing poses a significant yet manageable threat to Bitcoin, as highlighted by Wall Street broker Bernstein. Recent breakthroughs, such as Google Quantum AI's reduction in qubit requirements, suggest that the risk is becoming more imminent. However, the firm notes that scaling quantum systems to break widely used encryption remains a complex challenge.
Analysts emphasize that quantum computing should be viewed as a medium to long-term system upgrade cycle rather than a risk. By leveraging principles of quantum mechanics, quantum computing has the potential to solve problems more efficiently than classical computers, including breaking encryption. The threat posed by quantum computing spans multiple industries, including finance and defense, and is considered a manageable, long-term risk.
Approximately 1.7 million BTC held in older wallets are more vulnerable, while newer practices and protocols reduce exposure. Bernstein expects the crypto industry to have sufficient time, around three to five years, to transition toward post-quantum cryptography, with various upgrades already under discussion.