US NIST has released guidance on how organizations could reduce the risks of portable media to OT networks.

US NIST has released guidance on how organizations could reduce the risks of portable media to OT networks. Mediums like CDs, DVDs, and USB drives have been known to carry USB worms and other malware inside segregated OT networks.

NIST Special Publication (SP) 1334, Reducing the Cybersecurity Risks of Portable Storage Media in OT Environments

CSRC | NIST (csrc.nist.gov)