During a recent discussion at the All-In Summit 2025, Solana co-founder Anatoly Yakovenko raised urgent concerns about the potential risks posed by advancements in quantum computing to Bitcoin’s existing security framework. He estimated a “50/50” chance that quantum computers could achieve the necessary power to overpower Bitcoin’s cryptographic defenses within the next five years.
This threat arises from quantum algorithms, such as Shor’s algorithm, which could dismantle the Elliptic Curve Digital Signature Algorithm. This algorithm is crucial for Bitcoin’s security, as it safeguards private keys that control wallet transactions. Should these keys be compromised due to quantum capabilities, it could enable unauthorized transaction fabrication, posing an existential threat to the Bitcoin network.
Yakovenko expressed the need for Bitcoin to transition to a quantum-resistant signature scheme to mitigate this risk. However, he acknowledged that making such changes would be far from straightforward. Implementing a migration to post-quantum cryptography would necessitate a hard fork—a complex and often divisive process requiring widespread consensus among Bitcoin users, with the added complication of backward compatibility issues.
Despite Yakovenko’s warnings, not all voices within the cryptocurrency community share his sense of urgency. Adam Back, CEO of Blockstream, suggested that the danger is still somewhat distant, asserting that the process of adapting Bitcoin to be quantum-ready is relatively simple. Bitcoin Core contributor Peter Todd countered that the current capabilities of quantum computers are limited and that existing demonstrations only address trivial problems, underscoring that “quantum computers don’t exist” in a practical sense for now.
Another Bitcoin Core contributor, Luke Dashjr, also downplayed quantum computing as a pressing threat, prioritizing concerns such as spam and developer corruption within the ecosystem.
However, Yakovenko cautioned that today’s rapid advancements in artificial intelligence could lead to swift developments in quantum technology. He posited that once major tech firms like Apple or Google begin implementing quantum-safe cryptographic solutions, it will be critical for Bitcoin to adapt without delay.
