Galaxy Research Warns of Suspected Coldcard Wallet Theft Involving 388.9 BTC

iconNS3
Share
This is the logo of the coin.
BTC
$63,516.00-0.14%
AI summary iconSummary
BTC news today: Galaxy Research head Alex Thorn warned Coldcard users about a suspected wave of coordinated thefts targeting Bitcoin hardware wallets. Thorn identified 218 transactions affecting 462 potential victim addresses, moving approximately 388.9 BTC. The activity averaged 13.8 sweeps per block, significantly higher than pre-incident levels. Thorn noted users may be able to broadcast conflicting transactions with higher fees before attacker transactions are confirmed. The incident follows the discovery of a previously undetected firmware flaw in Coldcard devices that caused wallets to generate seeds with reduced entropy. BTC update shows the urgency for users to act quickly to secure funds.

Key Point

Galaxy research head Alex Thorn warned Coldcard users about a new suspected wave of coordinated thefts targeting Bitcoin hardware wallets. Thorn flagged 218 transactions affecting 462 potential victim addresses in the last few hours, moving around 388.9 BTC. Thorn said the activity averaged 13.8 sweeps per block, around 45 times the rate in a pre-incident control window. Thorn said affected users who control the relevant keys may be able to broadcast a conflicting transaction with a higher fee before the attacker transaction is confirmed. The activity follows the disclosure of a previously undetected Coldcard firmware flaw that caused affected devices to generate wallet seeds with less entropy than intended.

Why it matters: Wallet seed weakness can directly expose user funds and may reduce confidence in self-custody security until affected funds are moved or secured.

Market Sentiment

Cautiously Bearish, Stress-on, Event-driven, Fear.

Reason: The suspected Coldcard theft wave moved around 388.9 BTC from potential victim addresses, which points to direct security stress for affected holders.

Similar Past Cases

The 2022 Slope wallet incident showed how wallet-level seed exposure can force urgent wallet migration. Solana said affected addresses had been created, imported, or used in Slope wallet applications, and affected users were urged to move assets to new wallets. (Solana) The difference is that the current case involves suspected weak seed generation in Bitcoin hardware wallets, not a mobile wallet provider.

Ripple Effect

Weak seed generation can spread stress through the self-custody channel because users may rush to move funds before attacker transactions confirm. If similar mempool transactions confirm, then the incident could keep pressure on hardware wallet trust and Bitcoin custody practices.

Opportunities & Risks

Opportunities: If affected users can broadcast conflicting higher-fee transactions before attacker confirmations, then moving funds to a secure wallet is a potential loss-limiting signal.

Risks: If similar mempool transactions keep confirming, then reducing exposure to vulnerable wallet setups limits operational downside.

Source:Show original
Disclaimer: The information on this page may have been obtained from third parties and does not necessarily reflect the views or opinions of KuCoin. This content is provided for general informational purposes only, without any representation or warranty of any kind, nor shall it be construed as financial or investment advice. KuCoin shall not be liable for any errors or omissions, or for any outcomes resulting from the use of this information. Investments in digital assets can be risky. Please carefully evaluate the risks of a product and your risk tolerance based on your own financial circumstances. For more information, please refer to our Terms of Use and Risk Disclosure.