According to Bitcoin News, Galaxy Research has disclosed details on the largest known COLDCARD theft, involving 1,159 BTC. Those funds are spread across seven attacker addresses and have not yet been touched — no Bitcoin has been cashed out or sent through a mixing service. The coins were stolen in a window of 41 minutes, yet roughly 600 attacker addresses have already been flagged by law enforcement agencies, exchanges and blockchain analytics companies. In a separate development, a smaller-scale attacker appears to have started washing funds. On-chain analysts tracked 64 BTC moving into a mixer; initially only about 10 BTC completed the mixing process, while 54 BTC returned as change and were split into outputs of roughly 7 BTC each for further mixing. Analysts note these unusually large outputs are still easy to follow, so the laundering effort remains relatively transparent.
Galaxy Research, via Bitcoin News, said the largest known COLDCARD theft involved 1,159 BTC. The funds sit across seven attacker-controlled addresses and remain idle: none of the coins have been cashed out or passed through a mixing service. The theft itself was completed in 41 minutes, but law enforcement, exchanges and blockchain analytics firms have flagged roughly 600 addresses tied to the attackers.
At the same time, a smaller attacker appears to have begun cleaning funds. On-chain analysts saw 64 BTC move into a mixer. Of that total, only about 10 BTC initially completed mixing; 54 BTC came back as change and were split into outputs of roughly 7 BTC each for additional mixing rounds. Analysts say those unusually large outputs are still easy to trace, which makes the laundering attempt relatively transparent.
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