A shocking storage exploit bankrupts Bitcoiners — with lessons for us all

A shocking storage exploit bankrupts Bitcoiners — with lessons for us all


Coldcard, one of the better-known hardware wallets in the Bitcoin world, shipped a firmware bug that weakened the secret keys protecting customers’ money. By Saturday afternoon, Galaxy Research had identified three waves of suspected theft totaling 1,367.05 Bitcoin, worth about $88.6 million, across 4,585 addresses.

That is the observed damage, not necessarily the final bill. Galaxy’s method spots a particular attacker’s habits on the public Bitcoin ledger. The researchers warn that another thief could change a few details and blend into ordinary wallet traffic, making additional thefts much harder to count. An address is not the same thing as a person, either, so 4,585 addresses does not mean 4,585 victims. The actual number of people robbed remains unknown.

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The danger had not passed by Saturday evening. Galaxy

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