What Google talked about quantum computers

[Karl_3000]

This is according to what I saw on Coindesk. If you know that it is not true, you can correct me.

I know about the new Google research about quantum computers but I dd not read it in full, I am just seeing this on Coindesk that all that will later be needed to derive private key from public key during quantum computers cracking bitcoin private key is just 9 minutes.

https://www.coindesk.com/tech/2026/03/31/what-does-cracking-bitcoin-in-9-minutes-by-quantum-computers-actually-mean
New research from Google's Quantum AI team suggests a future quantum computer could derive a bitcoin private key from a public key in about nine minutes, potentially allowing attackers to hijack transactions before they are confirmed.


This means that the quantum computers can be used to attack unconfirmed transactions if not confirmed before 9 minutes but we know that bitcoin transactions can at times takes 9 minutes or more.

[NotFuzzyWarm]

Old FUD news. Ref https://bitcointalk.org/index.php?topic=5579141.msg66575228#msg66575228 for discussions about it.
The last paragraph is quite important regarding 'news'...

[BlackHatCoiner]

Yes, there have been plenty of threads the past few days. Some of them:

• Be careful what you choose to believe about Quantum
• Quantum threat ignored by Bitcoin developers
• Bitcoin Under Quantum Threat? New Google Data Warns About 2029 Deadline

The critical nuance people are missing is that this is a resource estimate, not a demonstration. In other words, the paper tells us that "if you build this machine, here is what it costs". It does not tell us when that machine will exist. No quantum computer with anywhere near 500,000 physical qubits exists today. Google's current machines have on the order of ~100 physical qubits.