Adam Back, an early pioneer in the cryptocurrency sector, has called on the Bitcoin community to begin preparing for quantum computing risks now, even if the technology remains in its experimental stage. Speaking at the Paris Blockchain Week 2026, Back emphasized that current quantum systems are still largely “lab experiments” with incremental progress over decades.
Despite this, he said the safest strategy is to develop optional upgrades that would allow Bitcoin to migrate to quantum-resistant cryptography when required. Back noted that preparation ahead of time is safer than making urgent changes during a crisis, highlighting ongoing research by Blockstream into potential threat scenarios.
Research Advances and Network Upgrades Under Consideration
Blockstream researchers have already experimented with hash based signature systems on the Liquid Network, aiming to test alternatives capable of resisting quantum attacks. Back also pointed out that the existing Taproot upgrade could support new signature methods without disrupting current users, offering flexibility for future transitions.
While Back previously estimated the quantum threat to be 20 to 40 years away, recent findings from Google and the California Institute of Technology suggest powerful quantum systems could emerge sooner than expected, potentially capable of breaking cryptographic protections in minutes.
Debate Intensifies Over Freezing Vulnerable Bitcoin Holdings
The discussion comes amid controversy surrounding a proposal from Jameson Lopp and other researchers to freeze Bitcoin held in vulnerable wallets, including coins linked to Satoshi Nakamoto. Critics such as Mark Erhardt have argued that freezing funds would contradict Bitcoin’s decentralized principles, while industry figures like Phil Geiger warned it could set a controversial precedent.
As research continues, developers stress that proactive preparation and consensus-driven upgrades will be essential to maintaining long-term network security.
Disclaimer
This content is for informational purposes only and does not constitute financial, investment, or legal advice. Cryptocurrency trading involves risk and may result in financial loss.