CZ Explains Why Quantum Computing Won’t Kill Crypto

Quantum computing fears are picking up after new research suggested future machines could break today’s crypto security. Binance CEO Changpeng Zhao responded directly, saying the industry doesn’t need to panic. His argument is that crypto can upgrade, and that’s what matters for long-term survival.

Upgrades are possible, coordination is the real problem

As it happens, the concern comes from recent work tied to Google Quantum AI showing how quantum systems could target encryption used in Bitcoin (BTC) and other networks.

CZ’s position, shared in an X post on March 31, is grounded in how crypto has evolved before. Security standards change, algorithms get replaced, and systems move forward. None of that is new. What’s changed is the scale of coordination now required.

Crypto networks have no central authority pushing updates. Decisions move through consensus, which means debate, delays, and sometimes forks. Different groups could push competing quantum-resistant solutions, potentially splitting networks or producing parallel versions of the same blockchain.

“It’s hard to organize upgrades in a decentralized world. There will likely be many debates on which algorithm(s) to use, resulting in some forks. And some dead projects may not upgrade at all. Might be good to cleanse out those projects anyway.”

There’s also a short-term problem that doesn’t get enough attention: any major upgrade introduces new code, and new code breaks things. Bugs and rushed implementations are common in transition periods.

What this means for users and old wallets

CZ flagged something more practical. People who self-custody will likely need to migrate funds to new wallet formats once upgrades roll out, and that’s a real inconvenience for long-term holders who rarely touch their coins.

Then there’s the question of inactive wallets. Early Bitcoin addresses, including those linked to Satoshi Nakamoto, could become exploitable if legacy cryptography fails. That opens an uncomfortable debate: should those coins stay untouched, or should networks act to prevent them from being claimed by whoever gets there first?

Meanwhile, Bitcoin security researcher Justin Drake estimates a 10% chance of a so-called ‘Q-Day’ happening by 2032, when quantum computers, using a method called Shor’s algorithm, could crack widely used encryption like the one behind the original cryptocurrency.

That said, crypto venture capitalist Luke Martin pointed out that the mysterious Bitcoin creator Satoshi Nakamoto has considered the possibility of quantum computing presenting a risk to crypto, and said that:

“True, if it happened suddenly. If it happens gradually, we can still transition to something stronger. When you run the upgraded software for the first time, it would re-sign all your money with the new stronger algorithm.”

All things considered, quantum computing is a real challenge with no clear timeline for becoming a real threat. Crypto doesn’t break overnight. It changes, sometimes slowly, sometimes painfully. This would be another one of those moments.