Cuộc tấn công vào ví phần cứng Coldcard đạt tới 116 triệu USD, ảnh hưởng đến hơn 5.200 địa chỉ

The Huoxing Finance report states that the Coldcard hardware wallet attack has expanded to approximately $1.16 billion, with attackers transferring 1,816 BTC from over 5,200 addresses. Galaxy Research confirmed a fourth wave of transfers, revising the amount moved in this wave to approximately 449 BTC. Alex Thorn, head of Galaxy Research, stated that the latest activity may represent a "fourth organized theft," with transfer rates reaching 13.8 transactions per block—about 45 times the baseline level before the incident. Their analysis suggests the pattern indicates multiple groups may be simultaneously scanning the affected key space. The root cause has been traced back to a firmware update in 2021 for certain Coldcard devices, which changed the wallet seed generation process from a hardware-based random source to a predictable software-based pattern. The Canadian manufacturer Coinkite advises users who generated wallet seeds on Coldcard devices to transfer their funds to a new secure wallet as soon as possible.