The Quantum Threat: Google Warns Bitcoin "Margin for Error" is Narrowing

Google has issued an urgent white paper warning that quantum computers could intercept Bitcoin transactions and steal billions in dormant assets, including Satoshi Nakamoto's wallet.

By: AXL Media

Published: Apr 20, 2026, 9:23 AM EDT

Source: RNZ Pacific

The Breaking Development: 10 Minutes to Theft

The Google paper identifies a critical vulnerability in the current Bitcoin transaction process:

Active Theft: Because Bitcoin transactions take an average of ten minutes to confirm, a hacker with a quantum computer could theoretically intercept the public key during that window, derive the private key, and divert the assets before the transaction settles.

Dormant "Treasure Chests": Approximately 1.7 million Bitcoin have remained untouched since 2009. These "at-rest" assets represent a multibillion-dollar target for quantum actors.

The Satoshi Risk: This total includes the estimated 1 million Bitcoin held by the mysterious founder, Satoshi Nakamoto. If a quantum actor successfully cracked this wallet, experts warn it could tank the market price and cause a total collapse in investor confidence.

Background and Strategic Context: The "Harvest Now, Decrypt Later" Strategy