15 Attackers Exploit Coldcard Entropy Flaw in Fragmented Campaign

Woofun AI reports that Galaxy Bitcoin has identified more than 15 distinct attackers involved in a fragmented exploit campaign targeting Coldcard hardware wallets. This discovery shifts the narrative from a single coordinated theft to a distributed series of breaches.

The investigation timeline anchors to August 4, 2026, when fresh reports emerged detailing the scope of the incident. While an AI claim regarding the attack remains provocative and contested, the underlying flaw was already public during several demonstrations. Consequently, the expanding loss estimate indicates that the exploit is still being reconstructed rather than fully contained or understood.

Structurally, the incident exposes a critical testing failure within the hardware wallet’s architecture. The device’s core security promise depended on entropy, which firmware quietly weakened without adequate verification. Per Woofun AI, this technical oversight allowed attackers to bypass intended safeguards, turning a theoretical vulnerability into a practical breach.

The fragmented nature of the campaign suggests ongoing exploitation risks as investigators continue to map the full extent of the compromised devices.