Key Highlights
- Brian Armstrong pledges personal focus on Bitcoin’s quantum security as risks grow urgent.
- Coinbase forms a Quantum Advisory Board to plan real-world steps toward post-quantum blockchain safety.
- Experts warn attackers could store encrypted data now to exploit future quantum breakthroughs.
Quantum computing is no longer a distant concept for the crypto industry. It is starting to raise real questions about how secure today’s blockchains will remain in the future. Brian Armstrong, the CEO of Coinbase, has now made it clear that this is a problem that needs attention sooner rather than later, especially for Bitcoin.
His comments come at a time when new research from Google and the California Institute of Technology is beginning to change how experts think about the timeline of quantum threats. What once felt like a long-term risk is now being discussed as something the industry should actively prepare for.
The move comes after Coinbase’s internal teams flagged potential dangers from advanced computing. Armstrong said, “Going to start spending time on this personally – seems like we all need to solve it sooner rather than later.” His comments reflect a growing sense of urgency across the crypto industry.
Armstrong echoed concerns from Coinbase’s Chief Security Officer, Philip Martin, who warned that preparing Bitcoin for the quantum era is a complex challenge. He pointed to recent research from Google and Caltech as a key signal that the threat is getting closer.
Quantum threats move closer
These machines can solve certain problems far faster than traditional computers. Algorithms like Shor’s could potentially break the cryptography that currently protects Bitcoin wallets, transactions, and the blockchain itself.
Experts disagree on when this will happen. Many say large-scale quantum computers are still years away. But some attackers could already be storing encrypted blockchain data to crack it later—a “harvest now, decrypt later” approach that raises long-term risks.
Philip Martin pointed out that solutions for post-quantum security already exist, but adoption across blockchain networks is patchy. Bitcoin, in particular, doesn’t have a clear plan for migration. Rushing any changes could create new vulnerabilities rather than fix existing ones.
Industry response gains momentum
Coinbase has already started addressing these risks. In January 2026, it set up a Quantum Advisory Board with experts like Scott Aaronson and Dan Boneh to assess real-world threats and recommend practical ways to move Bitcoin and other blockchains to post-quantum security. The board focuses on research without hype or speculation.
Brian Armstrong also emphasized the approach in a CNBC interview, calling quantum computing a “solvable” problem. He added that Coinbase is in regular contact with major blockchain teams to plan upgrades to post-quantum cryptography.
At the same time, Google’s Quantum AI team has raised alarms. Their latest research suggests that fewer than 500,000 qubits could be enough to break Bitcoin’s encryption—far lower than previous estimates in the millions. Researchers also outlined possible attack scenarios using 1,200 to 1,450 logical qubits.
Ethereum Co-Founder Vitalik Buterin called for faster action on quantum threats. He pointed to Ethereum’s EIP-8141 upgrade, saying it “makes privacy protocols much more first-class.” His comments reflect a broader shift in the industry—from discussing theoretical risks to taking urgent, practical steps.
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