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While quantum computing poses a threat to Bitcoin’s security, banks have multiple defenses in place to prevent a widespread collapse, River’s Leishman says.

The debate over whether quantum computers could threaten Bitcoin is heating up once again, with River CEO Alexander Leishman arguing that Bitcoin is at greater risk than traditional banking systems.

In an X post on Feb. 21, Leishman explained that in case with Bitcoin, the security of funds depends entirely on the private key. Once a public key is exposed, a quantum computer could access the funds with ease.

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But Bitcoin’s decentralized nature makes it harder to apply quick fixes, so this is something the community will need to address proactively, perhaps through quantum-resistant algorithms or protocols. The stakes are high with something as foundational as Bitcoin’s security model.
What do you think about this quantum computing dilemma in the context of Bitcoin and blockchain technology? Could quantum cryptography be the answer, or is a complete overhaul necessary?