Hackers behind the Coldcard exploit transferred 64 Bitcoin, worth $4.17 million, to the Wasabi mixing protocol and 200 Ether, worth $380,000, to Tornado Cash, according to blockchain security platform CertiK. The Coldcard exploit has become the third-largest cryptocurrency hack in 2026, draining at least $100 million in Bitcoin from 7,300 victim wallets across three confirmed attack waves. Galaxy Digital identified a suspected fourth wave that could bring total losses to approximately $130 million. TRM Labs analysis shows that most stolen funds remain pooled in a small number of attacker-controlled addresses with limited mixing attempts, and differences in transaction construction during each attack wave hint at multiple attackers behind the exploit.
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