<blockquote>
<p>I mean if a large computer pool is used to attack a blockchain and modify the copy of the blockchain in 51% of computers in the network. Then due to consensus, the faulty blockchain will be replicated across the whole network. Thus changing the whole blockchain.</p>
</blockquote>
<p>It won't work. Large computers are <em>terrible</em> at mining. It's like trying to use a jet plane to get billions of watermelons across a street. Sure, jet planes are big and powerful, but they're completely the wrong tool for that particular job.</p>

CC BY-SA 4.0
2021-07-11T21:02:22.683Z
2021-07-11T21:02:22.683Z
David Schwartz
<p>I mean if a large computer pool is used to attack a blockchain and modify the copy of the blockchain in 51% of computers in the network.
Then due to consensus, the faulty blockchain will be replicated across the whole network. Thus changing the whole blockchain.</p>

<blockchain>
What if a pool of computers are used to attack a blockchain and modify it in 51% of the network?
Yogesh
# What if a pool of computers are used to attack a blockchain and modify it in 51% of the network?

(Asked by: username_0 on 2021-07-11)

I mean if a large computer pool is used to attack a blockchain and modify the copy of the blockchain in 51% of computers in the network.
Then due to consensus, the faulty blockchain will be replicated across the whole network. Thus changing the whole blockchain.

**Tags:** blockchain


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## 1 answers

### Answer by username_1 on 2021-07-11. Score: 2

> I mean if a large computer pool is used to attack a blockchain and modify the copy of the blockchain in 51% of computers in the network. Then due to consensus, the faulty blockchain will be replicated across the whole network. Thus changing the whole blockchain.

It won't work. Large computers are *terrible* at mining. It's like trying to use a jet plane to get billions of watermelons across a street. Sure, jet planes are big and powerful, but they're completely the wrong tool for that particular job.


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