Casa Co-Founder Jameson Lopp Explains Why Attacks On Bitcoin Won’t Work
Casa Co-Founder Jameson Lopp Explains Why Attacks On Bitcoin Won’t Work
August 12, 2020
Casa Co-Founder Jameson Lopp Explains Why Attacks On Bitcoin Won’t Work
Casa Co-Founder Jameson Lopp Explains Why Attacks On Bitcoin Won’t Work
August 12, 2020

Jameson Lopp, the co-founder and CTO of Casa, has explained why attacks on Bitcoin won’t work and he expects that China’s mining dominance won’t last.

It has been reported in a blog post that although many people have raised concerns over the concentration of such hashpower being located in China, Lopp pointed out that even in the event of a 51% attack on Bitcoin, attackers are limited in what they can actually do. 

However, he explained that attackers can’t steal people’s Bitcoin arbitrarily, nor change the consensus rules. They can’t reverse valid transactions. The only thing they can do is double-spend their own Bitcoin. 

The best way for a 51% attacker to seek maximum profit is to cash out through crypto exchanges into “censorship-resistant cryptocurrency or stablecoin.”

This presents big problems in terms of withdrawal limits and Know Your Customer requirements among exchanges. It also doesn’t make much economical sense for attackers to dump a big chunk of Bitcoin at once.

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Lopp said:

“The value of the Bitcoin you still hold after the attack will likely have decreased substantially, thus a successful large attack could actually result in shooting yourself in the foot. You’d better not slip up while you’re accessing the exchange you target. For example, one hacker returned $25M in stolen funds after leaking their IP address.”

He also thinks that it would be nearly impossible for a nation-state to get in total control of mining facilities and that Bitcoin stakeholders would take immediate emergency actions against such an act. 

According to the report, even if the attack shifts from targeting individual mining facilities to an easier attack of mining, 70% of hashpower in China is coordinated via fewer than 10 mining pools, switching mining pools is incredibly easy for miners. It’s also difficult to pull off covertly as there are plenty of independent companies putting out social media alerts against malicious actors.

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He said:

“It’s hard to imagine a scenario in which a state actor would be able to quickly and covertly seize enough hashpower to perform an ongoing attack that lasts more than a few hours.” 

According to Lopp, the reason hashpower has been concentrated in China ever since 2015 is due to the fact most of the mining chips are produced in Asia. Most importantly, China also has “an abundance of cheap energy” and has the political and economical stability to facilitate the mining infrastructures. 

Thus, he concluded that any large-scale mining attack is going to be “limited in its effectiveness.”

Source: Cointelegraph | Image: MIT Technology Review


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Ishita Bora

Ishita Bora is a Senior Content Creator at Digital Notice Media Labs with an experience of 1 year. She has completed her Master's Degree in Language and Linguistics in 2019 from Gauhati University, India. Her interest lies in blockchain technology and cryptocurrency space, as she loves writing about blockchain and other blockchain-related articles. Currently, she is working on blockchain-based news, reviews, featured articles, and guides.