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Galaxy Research Warns Coldcard Hack Losses Could Reach $130 Million as Fourth Attack Wave Emerges

Galaxy Research said on X that it suspects total Bitcoin losses from the Coldcard firmware vulnerability could swell to $130 million once a still-unconfirmed fo…

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Galaxy Research Warns Coldcard Hack Losses Could Reach $130 Million as Fourth Attack Wave Emerges
Article image: Galaxy Research Warns Coldcard Hack Losses Could Reach $130 Million as Fourth Attack Wave Emerges

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  • Galaxy Research said on X that it suspects total Bitcoin losses from the Coldcard firmware vulnerability could swell to $130 million once a…
  • The research unit has tracked 1,367.05 BTC drained from 4,585 addresses since July 30, when the first wave emptied 1,082.65 BTC from 1,196 addresses…
  • On August 3, Galaxy's head of research Alex Thorn warned that a fourth coordinated wave had swept 388.93 BTC across 218 transactions in about 2.5…

All stolen funds remain dormant on the network, held across seven attacker addresses from the first two waves, while the third wave used a different pattern — one destination per victim, P2WSH outputs, and batched sweeps averaging 6.37 victims per transaction. Galaxy emphasized that Wave 3 differs on every measurable behavioral axis and should not be assumed to be the same operator, while smaller imitators are now targeting remaining vulnerable mnemonic phrases independently.

Bitcoin traded near $63,600 with 24-hour volume of $26.2 billion as of August 4, according to crypto-metrics data. The ongoing drainage of dormant coins into attacker-controlled addresses, combined with the potential for a fourth wave and copycat activity, leaves the final loss tally unresolved.

Will the fourth wave and imitator activity push confirmed losses past the $130 million threshold before vulnerable users complete migration?

Sources: Source 1 · Source 2 · Source 3 · Source 4 · Source 5 · Source 6

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