AiVibeRemovable Media Control
Removable media control is the set of policies and technical measures that restrict and check USB drives, external disks and other portable media in industrial environments, a common route for malware into isolated networks.
Removable media control is the set of policies and technical measures that govern the use of USB drives, external disks, memory cards and similar devices in industrial environments. Because many OT networks are isolated or tightly segmented, removable media are a common way to move files such as software updates, controller programs and reports, and therefore also a common way for malware to enter.
Stuxnet is a widely cited example of malware that spread to an isolated industrial network through infected USB drives. Typical controls include disabling USB ports or restricting them to approved devices, requiring media to be scanned at a dedicated kiosk before entering the plant, using encrypted and registered company drives, controlling transient devices such as vendor laptops and logging file transfers.
Controls must allow legitimate work, such as vendor maintenance and backups, or staff will find workarounds. Policies should define who may use media, where scanning happens and how exceptions are approved. IEC 62443-3-3 includes use control for portable and mobile devices, and NIST SP 800-82 covers removable media in OT. Scanning reduces risk but cannot detect every threat, so it works best combined with allowlisting and monitoring.
Key points
- Removable media are a common route for malware into isolated OT networks
- Controls include port restrictions, scanning kiosks and registered company drives
- Vendor laptops and other transient devices need similar controls
- IEC 62443-3-3 includes use control for portable and mobile devices
Where AiVibe comes in
In AiVibe's AiAmbA AI Factory, the AiAmbA IoT edge layer keeps writes to machines deny-by-default and AI agents only propose changes that a trained operator confirms. AiVibe's security services include vulnerability assessment and penetration testing, and AiVibe is ISO/IEC 27001:2022 certified.