Coldcard users are urged to be vigilant after a new wave of coordinated theft attempts targeting their hardware wallets. The latest attack has seen the loss of 448 Bitcoin, highlighting ongoing securi
In an alarming development for Coldcard wallet users, Galaxy research head Alex Thorn issued a warning about a suspected fourth wave of attacks, affecting over 709 potential victims and resulting in the theft of approximately 448.7 Bitcoin (BTC).
The activity is characterized by frequent transaction sweeps, with each block seeing an average of 13.8 transactions—significantly higher than pre-incident rates. Thorn noted that while some funds have been redirected to second-hop addresses, others remain uncollected due to the creation of fresh destination wallets for each victim.
This latest attack follows a previously undisclosed firmware flaw in Coldcard devices, which has compromised thousands of wallets by generating seeds with less entropy than intended. The incident underscores ongoing security challenges faced by hardware wallet users and highlights the need for constant vigilance among cryptocurrency investors.
Thorn advised affected users to monitor their transactions closely and potentially broadcast conflicting transactions with higher fees if they control the relevant keys, in an effort to preempt attackers before their transactions are confirmed.
The broader implications of this attack extend beyond individual losses. The incident has drawn renewed attention to the security vulnerabilities inherent in hardware wallets and serves as a stark reminder for users to stay informed about potential threats and take proactive measures to protect their assets.
Traders should closely monitor Coldcard usage trends, firmware updates, and user behavior on platforms like X (Twitter) or Reddit. Additionally, they may want to consider diversifying wallet solutions or adopting multi-signature wallets as a hedge against such security risks.
Source: Cointelegraph. Summarized and rewritten by the Vexoda Newsroom. This is market news, not financial advice.