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A comment on Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK. Parent comment

Re:Tokyo-based cryptocurrency exchange hacked, losing $530M:... by infinity0 on Saturday January 27, 2018 @05:58AM (#16245738)
It is not possible to move funds unless you have the private key, or if you have broken the cryptographic scheme the key uses.

Since the funds have moved (visible on the overall distributed blockchain system, where everything is public), either of the two scenarios must have happened. It really is that simple, there are no other "moving parts" or "possible human error" in other parts of the system here.

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Re:Tokyo-based cryptocurrency exchange hacked, losing $530M:... by michaelbuckbee on Saturday January 27, 2018 @11:30AM (#16246787)
So you have a case like this: the funds were moved with the private key. 24 hours after the owner comes and says: ‘I didn’t do that! Someone else must have copied my key and made that transaction!’

How does the exchange handle that? What’s the dispute mechanism?

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Re:Tokyo-based cryptocurrency exchange hacked, losing $530M:... by aptwebapps on Saturday January 27, 2018 @12:00PM (#16246903)
It's the exchange's own key that is thought to be compromised, not one of their customers'.
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