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Coldcard Wallet Exploit Triggers $89M Bitcoin Theft and Security Warning

A recent cryptocurrency hardware wallet security incident has impacted thousands of digital asset holders, raising urgent questions about supply chain integrity and firmware vulnerabilities in cold storage devices, according to reports from multiple cybersecurity and financial news outlets…

Coldcard Wallet Exploit Triggers $89M Bitcoin Theft and Security Warning

A recent cryptocurrency hardware wallet security incident has impacted thousands of digital asset holders, raising urgent questions about supply chain integrity and firmware vulnerabilities in cold storage devices, according to reports from multiple cybersecurity and financial news outlets including CoinDesk and The Hacker News. The breach highlights growing risks as automated auditing tools and sophisticated exploits target open-source cryptographic hardware.

The Scope of the Hardware Wallet Incident

According to investigations highlighted by CoinDesk, the cold-wallet attack has spread to approximately 4,500 addresses, with total losses approaching $89 million. Separate reporting from The Hacker News detailed a specific Coldcard hardware wallet flaw that was linked to a rapid $70 million Bitcoin theft executed in just 41 minutes.

Binance founder Changpeng Zhao (CZ) issued a public warning to Bitcoin holders following the exploit, stating that “nothing is 100%” secure, as reported by Yahoo Finance.

AI Auditing and Open-Source Vulnerabilities

The incident has also focused industry attention on how code is reviewed and tested. According to analysis published by Bitcoin Magazine, the Coldcard bug exposes a new reality where artificial intelligence is increasingly used to audit every open-source wallet, shifting the dynamics between developers and malicious actors who leverage automated scanning to find zero-day vulnerabilities faster than traditional human maintainers.

Market Response and Security Recommendations

Following the rapid escalation of losses—which TheStreet noted grew swiftly to $75 million before climbing further—community alerts urged users to verify their device firmware and monitor addresses closely.

Coldcard Vulnerability Is Draining Bitcoin Wallets Right Now
About the author: Marcus Liu - Business Editor

MBA and ex‑B bureau chief specializing in global finance and fintech. Marcus speaks Mandarin, Japanese, and English, and has interviewed CEOs from the Fortune 50 to Y‑Combinator unicorns. Marcus Liu delivers sharp analysis on markets, startups, and corporate strategy for investors and entrepreneurs alike.