Adam Back, CEO of Blockstream, has dismissed concerns that quantum computing poses an immediate risk to Bitcoin, arguing that current technology remains far from capable of breaking its cryptographic foundations.
In a recent interview, Back emphasized that quantum computing is still largely experimental, with existing machines limited in scale and reliability. He pointed out that today’s systems lack full error correction and have only demonstrated basic computations, highlighting how far the field must progress before it can challenge real-world encryption standards.
While acknowledging ongoing academic advancements in quantum algorithms, Back said these developments have yet to translate into practical hardware capable of threatening Bitcoin’s elliptic curve cryptography. As a result, he estimated that any meaningful risk from quantum computers remains decades away, though he noted that precise timelines remain uncertain.
Back’s comments came as speculation around his identity resurfaced following a report by The New York Times suggesting he could be Satoshi Nakamoto. He has repeatedly denied the claim, and experts note there is no conclusive evidence linking him to Bitcoin’s creation.
Despite his long-term outlook, Back stressed that preparation should begin now. He advocated for a gradual transition toward quantum-resistant cryptographic systems, allowing users and institutions to upgrade infrastructure without disruption. He noted that Blockstream has already been exploring such technologies and testing implementations on its Layer-2 network.
Back also pointed to progress by the National Institute of Standards and Technology, which approved post-quantum cryptography standards in 2024, as a key step toward broader adoption.
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