Concerns over long-term technological risks have resurfaced in cryptocurrency markets following Google’s latest announcement about advances in quantum computing. While leading digital currencies like bitcoin and ether saw little price movement, attention turned to projects described as resistant to quantum threats, with increased activity unfolding in these areas.
New security questions raised by quantum advances
On Monday, Google’s Quantum Artificial Intelligence team revealed that an advanced quantum computer could potentially break the elliptic-curve cryptography underpinning bitcoin with a capacity of fewer than 500,000 qubits—far fewer than previously estimated. Although earlier predictions suggested reaching such thresholds would take longer, this revised figure has reignited debates about the resilience of blockchain infrastructure to future quantum attacks.
According to the researchers, a sufficiently powerful quantum machine could compromise the bitcoin network in as little as nine minutes. Separate analyses have noted that Ethereum may be vulnerable to various attack vectors, placing roughly $100 billion in crypto assets—including decentralized finance (DeFi) applications and tokenized holdings—at possible risk. These findings underscore gaps not only in core networks but also in the broader ecosystem built atop these networks.
Even though quantum computers of such sophistication do not yet exist, the possibility that this technology could emerge within the next few years remains a topic of ongoing discussion among market participants.
Growing interest in quantum-resistant projects
Over the past 24 hours, investor interest has notably shifted toward crypto projects focusing on post-quantum cryptography and advanced security measures. These digital assets saw a collective market capitalization increase of 8 percent, climbing to $4.66 billion, as future-proofing security drew heightened focus from the community.
One standout in this niche is Zcash (ZEC), recognized for its pioneering cryptographic foundations, such as zero-knowledge proofs. While Zcash has not yet fully implemented quantum-resistant algorithms, ongoing research into post-quantum security and its focus on privacy positions the project as a notable player within this emerging field. Although current protocols do not yet provide full protection against quantum threats, the Zcash ecosystem has distinguished itself through its awareness and preparation for this new era.
Despite these risks currently being more theoretical than practical, the industry’s behavior has shown a response over the past year. Charles Edwards, founder of Capriole Investments, suggested that these growing concerns have contributed to bitcoin diverging from traditional equity markets during the second half of 2025, with the cryptocurrency falling from around $126,000 to $80,000 by year’s end.
“We are already observing quantum risk beginning to impact bitcoin’s price performance. This has been the main driver behind bitcoin underperforming the S&P 500 by 50 percent—and trailing gold by some 90 percent,” Edwards wrote in his report.
Meanwhile, among quantum-resistant assets, ZEC took the spotlight during the latter half of the year, soaring over 1,200 percent to reach a value of $744, dramatically outpacing broader market trends.
