Coldcard Wallet Exploit Expands: Losses May Reach $114 Million According to CoinDesk, the vulnerability exploit targeting Coldcard hardware wallets has entered its fourth wave of fund transfers, with total losses potentially nearing $114 million. The attack began on July 30, with the first three waves confirmed to have resulted in the loss of approximately 1,367 BTC, affecting 4,585 addresses. If the fourth wave is confirmed, the total transferred BTC would reach around 1,816 (approximately $114 million), impacting over 5,200 addresses. Thorn stated that no direct victim reports have been received yet. Their assessment is based on on-chain transaction pattern analysis, and the early disclosure aims to alert users to take timely action. So far, the attack primarily affects single-signature wallets, while multi-signature wallets remain unaffected.