According to Bitcoin News, Galaxy Research says the largest known COLDCARD theft involved 1,159 BTC. The stolen coins sit across seven attacker addresses and have not been touched: 0 BTC has been cashed out or sent through a mixer. The bitcoin was stolen within a 41-minute window. Around 600 attacker addresses have already been tagged by law enforcement agencies, exchanges, and blockchain analytics companies. At the same time, a smaller attacker appears to have started cleaning funds. On-chain analysts tracked 64 BTC moving into a mixer. Of that amount, only about 10 BTC initially completed the mixing process; 54 BTC came back as change. That change was later split into outputs of roughly 7 BTC each, likely for another round of mixing. Analysts note that these unusually large outputs remain easy to follow, which leaves the laundering attempt relatively transparent. The main stack, meanwhile, remains dormant across those seven marked addresses.
Galaxy Research says the largest known COLDCARD theft involved 1,159 BTC, according to Bitcoin News. The funds sit in seven attacker addresses and remain untouched. None of the stolen bitcoin has been cashed out or pushed through a mixer.
The theft itself unfolded in 41 minutes. Around 600 addresses linked to the attack have been flagged by law enforcement, exchanges, and blockchain analytics firms. A separate, smaller attacker appears to be moving, though. On-chain analysts watched 64 BTC enter a mixing service. Only about 10 BTC completed the first round of mixing; 54 BTC bounced back as change. That change was then carved into outputs of roughly 7 BTC each, apparently headed for more mixing.
Analysts say the oversized outputs are hard to miss. The laundering effort, they argue, remains relatively transparent so far.
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