Key Takeaways:
IBM's quantum computing timeline is now measured in years, not decades — and Bitcoin's defense clock is shrinking with it.
About $437 billion of Bitcoin sits in quantum-exposed addresses, a risk IBM Chief Executive Arvind Krishna said could arrive by 2028 or 2029.
"I think that in 2028 or 2029, you'll see it have a measurable impact on our top line and bottom line. By the end of the 2030s, we are now pretty convinced this is a trillion dollars of value," Krishna told CNBC on Thursday.
Over 34 percent of Bitcoin's supply is held in addresses with publicly revealed keys, per the BIP-361 proposal — roughly 6.8 million BTC. Google Quantum AI's findings from March cut the qubit count needed to break elliptic curve cryptography by about 20-fold, to under 500,000.
Bitcoin still lacks an agreed migration path. Developers merged BIP-360 into the proposal repository in February, while the broader BIP-361 draft remains contested. Institutional money has started to respond.
The same day Krishna spoke, IBM and Algorithmiq said they had demonstrated quantum advantage, reporting that a quantum computer outperformed leading classical methods on a specific simulation task. "It demonstrates that quantum computers can provide trusted solutions more efficiently, more cheaply, or more accurately than leading classical compute methods," the team noted.
Quantum machines cannot break encryption today, but their pace of progress is what security planners act on. Roughly a third of Bitcoin's supply remains exposed.
Galaxy Digital launched its Bitcoin Quantum Readiness Initiative on July 21, committing up to $5 million in developer grants. Coinbase set up an Independent Advisory Board on Quantum Computing. Both firms are among nine founding members of the Bitcoin Security Consortium, which pledged $15 million alongside BlackRock, Fidelity Digital Assets, and Strategy.
The convergence of IBM's concrete timeline with Bitcoin's exposure could accelerate demand for quantum-resistant cryptographic solutions across the crypto ecosystem, even as the migration path remains unresolved.
This article is for informational purposes only and does not constitute investment advice.
