Google just edged closer to cracking Bitcoin’s security—quietly. The tech giant slashed the computing power needed to break RSA encryption by 20 times. Now, just one million qubits could do the job.
The Rapid Progress of Google Alarms Experts
Bitcoin firm NYDIG warns that Google’s quantum research could soon endanger cryptocurrencies. While current quantum computers max out at 1,000 qubits, Google’s latest breakthrough means RSA-breaking machines may arrive sooner than expected.
RSA encryption, used in emails, VPNs, and browsers, relies on complex math. But in 1994, mathematician Peter Shor devised an algorithm that—with enough qubits—could smash it. Google once estimated 20 million qubits were needed. Now, just one million might suffice.
Bitcoin’s Encryption Isn’t Safe Either
Bitcoin doesn’t use RSA. Instead, it relies on ECDSA and Schnorr signatures. Yet NYDIG warns these could also fall to quantum attacks. “ECDSA and Schnorr will likely be vulnerable eventually,” their report states.
The good news? Post-quantum cryptography (PQC) is advancing fast. The bad news? Upgrading Bitcoin will bring trade-offs. PQC algorithms demand larger keys, slower verification, and more block space—potentially slowing the network.
The Countdown Begins
No quantum computer today can crack Bitcoin. But Google’s progress proves the threat is real. The race to quantum-proof crypto is on—and time may be running out.
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