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Google Warns Quantum Could Crack Bitcoin Faster Than Thought | CoinDesk Daily

CoinDesk Podcast Network

CoinDesk

Tech News, Business News, Daily News, News

4.7698 Ratings

🗓️ 31 March 2026

⏱️ 3 minutes

🧾️ Download transcript

Summary

Google warns of quantum threat to bitcoin. Google’s Quantum AI team released a new whitepaper revealing that Bitcoin’s security could be compromised with significantly less computing power than previously assumed. The report suggests that it might only take 500,000 to crack the network and Bitcoin’s own Taproot upgrade might have made it easier to target transactions in real time. CoinDesk's Jennifer Sanasie hosts "CoinDesk Daily." - Nexo is the premier digital wealth platform. Receive interest on your crypto, borrow against it without selling, and trade a range of assets. Now available in the U.S with 30 days of exclusive privileges. Get started at https://nexo.com/coindesk. - This episode was hosted by Jennifer Sanasie. “CoinDesk Daily” is produced by Jennifer Sanasie and edited by Victor Chen.

Transcript

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0:00.0

Quantum threats might be closer than we think, and Charles Hoskinson's midnight launches main net.

0:05.9

This is CoinDesk Daily. I'm Jen Sanassi.

0:13.8

Discover Nexo, the premier digital wealth platform, now in the U.S.

0:17.8

Get started today at nexo.com slash coin desk.

0:20.6

In a newly published white paper, Google's quantum AI team revealed that cracking the cryptography behind Bitcoin and Ethereum may require fewer than 500,000 physical qubits. The number is drastically lower than the millions that experts in recent years have often cited. Google even designed two potential attack methods

0:38.2

that require only 1,200 to 1,450 high-quality qubits. The paper warns that quantum attacks

0:44.8

could potentially hijack real-time Bitcoin transactions in about nine minutes, potentially beating

0:50.0

confirmation about 41% of the time and putting around 6.9 million already exposed Bitcoin

0:56.6

at risk. The researchers point out that Bitcoin's taproot upgrade, which makes public keys visible

1:01.8

by default, may widen the pool of vulnerable wallets, prompting Google to urge earlier

1:06.9

post-quantum migration. Cardano founder Charles Hoskinson has debuted Midnight, a privacy-focused

1:12.9

layer one blockchain that he says will address crypto's core usability and data exposure flaws.

1:18.6

Midnight uses a system called selective disclosure, allowing users and businesses to prove things like

1:23.8

identity or compliance without revealing underlying sensitive data like balances or

1:28.3

salaries. To get the network off the ground, Hoskinson funded the project himself and distributed

1:32.7

tokens to 37 million wallets across eight blockchains in one of the largest air jobs in history.

1:38.4

The network's valuation quickly reached $1 billion following the launch.

1:42.0

And the U.S. Department of Labor has proposed a new rule

1:44.9

that would make it much easier for 401K plans to include alternative assets like crypto and private

1:50.3

equity. The proposal is a direct response to an executive order signed by President Trump last

1:55.2

August, which directed agencies to expand access to alternative assets for everyday investors.

1:59.8

If adopted, the rule would mark a massive

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