CAD models are digital engineering files used to design, test, and refine products before they are built. They often contain geometry, dimensions, tolerances, assembly details, and revision history, making them valuable to engineers and attackers alike.
In cyber security, CAD models matter because their exposure can reveal product design secrets, manufacturing methods, and supplier dependencies. Ransomware crews and data-leak operators often steal or threaten to publish them to increase pressure on a victim, especially in manufacturing. Defenders should treat these files as sensitive intellectual property, restrict access by role, monitor unusual downloads or exports, and protect engineering repositories with strong identity controls and logging.