According to Coincu, Lamassu Industries, a Bitcoin ATM provider, quickly resolved a significant vulnerability in its machines after ethical hackers demonstrated they could gain full control. In 2023, security researchers from IOActive set out to infiltrate Lamassu's ATMs and discovered exploitable weaknesses. Gunter Ollman, IOActive's chief technology officer, revealed that the vulnerabilities allowed attackers to view and manipulate interactions with the hijacked Bitcoin ATMs, potentially stealing Bitcoin from users' wallets during transactions. Ollman emphasized the sophistication of an attacker, highlighting the ability to modify the entire user experience and potentially trick users into divulging sensitive information, such as bank account details.

However, Ollman reassured the community that the impact would be confined to the user's account balance. He emphasized that when a device is compromised down to the operating system level, the extent of the attack is contingent on the user's trust in the device or its manufacturer. Gabriel Gonzalez, IOActive's director of hardware security, noted that the vulnerability granted an attacker with physical access to the ATM full control, posing risks of draining Bitcoin and manipulating the note reader to display incorrect deposit amounts. Lamassu Industries promptly addressed the issue, deploying a security patch before the vulnerability became public in 2024. Lamassu informed ATM owners about the fix, urging them to update their Bitcoin ATM machines promptly. This swift response from Lamassu reflects the commitment to user security, ensuring that potential vulnerabilities are promptly identified and rectified to safeguard users and maintain trust in the rapidly evolving landscape of cryptocurrency transactions.