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A comment on Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose Millions. Parent comment

Re:Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose M... by robertAngst on Wednesday May 23, 2018 @10:10PM (#17140460)
I dont think it has?
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Re:Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose M... by IncRnd on Wednesday May 23, 2018 @10:29PM (#17140549)
You don't think what has? There have been double spend attacks against BTC.
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Re:Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose M... by Jommi on Wednesday May 23, 2018 @10:47PM (#17140648)
source?
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Re:Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose M... by zeven7 on Thursday May 24, 2018 @01:19AM (#17141296)
Not exactly a double spend, but billions BTC being printed out of thin air: https://bitcointalk.org/index.php?topic=822.0
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Re:Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose M... by celticninja on Thursday May 24, 2018 @07:57AM (#17143105)
It has happened before but that was in 2010 when the codebase was < 2 years old.
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Re:Bitcoin Gold Hit by Double Spend Attack, Exchanges Lose M... by IncRnd on Thursday May 24, 2018 @11:31AM (#17144976)
It's happened quite a few times after that. Consider the merchants who have been known to use fewer than the standard # of confirmations and what it takes to reverse or reuse those charges. For example, here is a blog post on one way to do this: https://blog.acolyer.org/2015/10/01/misbehavior-in-bitcoin-a.... If you want to search you will find that there are scripts to automate this type of action by constructing bitcoin transactions.

Also, consider ghash.io or the odd OKPAY double spends.

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