Coldcard Bitcoin Theft Exceeds $100M as Galaxy Flags Possible Fourth Wave

Coldcard Theft Tops $100M: Three Waves Confirmed, Fourth Under Scrutiny

Galaxy Research has documented three separate attack waves targeting Bitcoin holders who used Coldcard hardware wallets, with combined losses now exceeding $100 million. The firm's analysts say the stolen funds are mostly sitting untouched — about 90% of the BTC has not been transferred since the thefts, a pattern that often indicates the attacker is biding time before moving the funds.

The attacks appear to have compromised the security of Coldcard devices, which are generally considered a hardened option for cold storage. However, the exact method of compromise has not been fully disclosed. Investigators are now examining what could be a fourth wave of theft, which if confirmed would lift the total to roughly $130 million.

Coldcard, a product line from Coinkite, has a strong reputation among Bitcoin maximalists for its air-gapped design and open-source firmware. Yet this incident underscores that even advanced hardware wallets are not immune to sophisticated attack vectors, especially when supply chains, firmware updates, or user operational security are compromised.

What Drove the Theft: Supply Chain or Firmware Flaw?

Potential Compromise Points in Coldcard's Security Model

The exact vulnerability has not been publicly detailed, but security analysts point to two primary suspects: a tainted supply chain that delivered pre-compromised devices, or a vulnerability in the firmware update process that allowed attackers to inject malicious code. Coldcard's reliance on a microSD card for firmware updates and transaction signing could be an attack surface if an attacker can intercept or replace the card.

Another possibility is that the attackers targeted the user's seed phrase generation or storage, perhaps through a malicious companion app or a physical tamper of the device during shipping. Because Coldcard devices are often purchased directly from the manufacturer, a supply-chain attack at the factory or during logistics could affect a large number of units without users noticing.

Why Stolen Funds Remain Unmoved

The fact that 90% of the stolen Bitcoin has not been transferred is significant. In many thefts, attackers quickly move funds to exchanges or mixers to cash out. Here, the pause suggests either the attacker is being cautious, perhaps waiting for the investigation to cool down, or they are planning a large-scale laundering operation that requires careful timing.

In the crypto world, the movement of stolen funds is often tracked by blockchain analytics firms, and exchanges are increasingly wary of accepting tainted coins. The attacker may be waiting for a period of high network congestion or a dip in prices to obscure their trail, or they might be testing smaller amounts to see if they get flagged.

Key Levels to Watch: Bitcoin Price and On-Chain Activity

For traders, the immediate impact on Bitcoin's price has been muted, as the theft is not a market-wide event but rather a security issue affecting a specific hardware wallet. However, the potential movement of $100–130 million in BTC could create selling pressure if the attacker starts moving funds to exchanges. That sum is relatively small compared to Bitcoin's daily trading volume, but a sudden dump could still cause short-term volatility.

On-chain analysts will be watching the wallets associated with the theft. If those coins start moving, it could signal an imminent sell-off. Conversely, if they remain dormant, the market may treat this as a non-event. For traders using technical analysis, Bitcoin's price action around key support and resistance levels will be more relevant than this news, but the possibility of a supply overhang is worth monitoring.

What This Means for Traders: Security, Risk, and Market Psychology

This incident serves as a stark reminder that no storage method is 100% secure. For traders who hold Bitcoin as part of their portfolio, it's crucial to understand the security trade-offs of different wallets. Hardware wallets are generally recommended for long-term storage, but they require careful handling: always buy directly from the manufacturer, verify the device's authenticity, and never share your seed phrase.

From a market perspective, security breaches like this rarely have a lasting impact on Bitcoin's price, but they can affect sentiment. If the theft is linked to a systemic vulnerability in a popular wallet, it could shake confidence in the broader ecosystem. However, Bitcoin's price is more influenced by macroeconomic factors, such as Federal Reserve policy and inflation data, than by isolated security incidents.

Traders might use this news as an opportunity to review their own storage practices. If you're actively trading, keeping only a small amount on an exchange and the rest in a secure wallet is a common strategy. For those new to crypto, understanding the basics of wallet security is essential before committing significant capital. Our classroom has guides on this topic.

The lack of movement of the stolen funds also highlights the importance of on-chain analysis. Tools that track whale movements and exchange inflows can provide early warning signs of potential selling pressure. Incorporating such tools into your trading routine can help you stay ahead of market moves.