Bitcoin and Ethereum are entering a race against the expected arrival of fault-tolerant quantum computing, as U.S. support for a $300 million hardware initiative brings the technology’s timeline closer to crypto’s own security planning. CoinDesk reports that the immediate threat has not arrived, but both developments are increasingly being viewed through a similar 2029 window. The convergence highlights a growing need for major blockchain networks to prepare migration plans before quantum systems become capable of creating a practical risk. For BTC and ETH, the issue is therefore less about an active attack today and more about the timing of future hardware capabilities and network readiness. The developments place quantum resilience on the longer-term technology agenda for the two largest crypto assets, while the U.S.-backed hardware push adds momentum to the broader race toward fault-tolerant machines.
