Coldcard Thefts Soar to $114M with 1,816 Stolen BTC

A security threat is escalating against hardware wallet users as Onchain Lens reports that thefts targeting Coldcard devices have increased, resulting in an estimated loss of 1,816 BTC, worth approximately $114 million. The blockchain analytics firm announced on X that a fourth attack, following the same pattern as three previous incidents, has affected an additional 462 users and resulted in the theft of 388.93 BTC.

According to Onchain Lens, the hacker has not yet moved the stolen funds to other addresses, which is a notable detail for investigators and affected users. However, new transfers from addresses linked to the attack were observed as recently as a few minutes before the firm's latest update, suggesting that the attacker may still be consolidating or preparing to launder the funds.

Earlier estimates from Galaxy Research projected total losses from the Coldcard incident could rise to as much as 2,055 BTC. The current figures from Onchain Lens are approaching that upper bound, indicating that the attack is still active and may continue to expand.