The attack cannot be observed until it is accomplished. Naturally the chain will... | Hacker News

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		jeremyjh on Jan 7, 2019 \| parent \| context \| favorite \| on: We can confirm that there was a successful 51% att... The attack cannot be observed until it is accomplished. Naturally the chain will be long enough to target the exchange the spend was made at.

Klathmon on Jan 7, 2019 [–]

it can't be observed until it's acted on, but it may not be done after the first "attack", especially if it's cheap enough to launch on that specific coin.

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