Dec 19, 2025

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Quantum Computing Concerns Impact Bitcoin, Developers Urge Preparedness

Concerns about quantum computing's impact on Bitcoin are influencing its price and investment flows. Developers and investors remain divided on the threat's immediacy.

Developers' Perspective

Adam Back, a Bitcoin developer, believes quantum machines are not yet capable of compromising Bitcoin, describing current technology as "ridiculously early."
He expects no real threat within the next decade, despite technical hurdles in quantum research.
Back emphasizes that Bitcoin’s security does not solely rely on encryption.

Investor Concerns

Some community members, like Jameson Lopp, warn about potential risks if quantum advances break Bitcoin's ECDSA signature scheme.
Nic Carter notes investor concern over developers dismissing quantum risks, causing some capital to be withheld or diversified into other assets.
Craig Warmke mentions that perceived quantum risk is prompting some holders to reduce their Bitcoin positions.

Current Technology Limitations

Experts agree that current quantum computers cannot crack Bitcoin’s cryptography.
Vitalik Buterin cites a ~20% chance that a machine capable of breaking current crypto could exist by 2030.

Calls for Preparedness

Reports indicate significant investments in quantum research by financial institutions and national programs.
Suggestions include adopting quantum-resistant signature schemes and improving wallet practices.
Experts suggest banks may face attacks earlier, offering time for the crypto sector to respond.