1,816 BTC Stolen: Coldcard Security Crisis Hits 462 Users in Fourth Attack

Woofun AI reports that a severe security breach targeting Coldcard hardware wallets has intensified, with Onchain Lens confirming total losses of 1,816 BTC. Galaxy Research had previously projected potential losses could reach 2,055 BTC, a threshold the current figures are rapidly approaching. This escalation marks a critical failure in offline storage security, implicating multiple stakeholders in the digital asset infrastructure.

The financial magnitude of the incident is now quantified at approximately $114 million, derived from the 1,816 BTC stolen to date. This figure represents a significant deviation from initial estimates, as the actual loss is converging on the upper bound of 2,055 BTC predicted by Galaxy Research. The proximity to this projected maximum suggests the attack vector remains active and potentially expanding beyond previously identified scopes.

A fourth distinct attack wave has been identified, mirroring the methodology of three previous incidents. This latest compromise affected 462 users, resulting in the immediate theft of 388.93 BTC. The recurrence of this specific pattern indicates a systematic campaign rather than isolated breaches, with each successive event adding substantial volume to the total loss ledger.

Woofun AI data shows that the hacker has not yet consolidated the stolen assets into other addresses, though new transfers were observed just minutes before the latest update. This behavior suggests the attacker is actively preparing to launder the funds, complicating recovery efforts. While Coldcard devices keep private keys offline, this incident demonstrates that technically advanced threat actors can execute sophisticated attacks against even targeted, high-security storage solutions.

The broader cryptocurrency community is urged to prioritize operational security by reviewing transaction histories and updating firmware. Users are advised to implement multi-signature setups or passphrase-protected wallets, while Exchanges and wallet providers must reassess their security protocols. The loss of over 1,800 BTC threatens market sentiment for Bitcoin, highlighting the need for vigilance and proactive security measures against evolving attack vectors in hardware wallets.

As the investigation continues, the cryptocurrency community awaits confirmation on whether the stolen funds will be moved or if the attacker will be identified. Onchain Lens and other analytics firms are tracking the situation closely, providing critical updates on the movement of assets. This incident underscores that security in the digital asset space requires constant adaptation to emerging threats.