Reducing the Cybersecurity Risks of Portable Storage Media in OT Environments | Comment on NIST SP 1334
July 15, 2025

The National Cybersecurity Center of Excellence has developed the draft two-pager NIST Special Publication (SP) 1334, Reducing the Cybersecurity Risks of Portable Storage Media in OT Environments. The cybersecurity considerations in this two-pager are intended to help operational technology (OT) operators and manufacturers use Universal Serial Bus (USB) devices securely.

Portable storage media can be used to transfer data physically to and from OT environments. USB storage devices are convenient, but their use poses potential cybersecurity risks for organizations that utilize them in their OT environments. Organizations can reduce these risks with secure physical and logical controls on the access, storage, and usage of USB devices. 

The NCCoE created the OT Security Series to assist organizations in securing their OT systems. If you have any comments on this two-pager and/or recommendations for additional topics that the OT Security Series could cover, please reach out to the NCCoE Manufacturing team at [email protected]. The comment period is open through August 14, 2025.

Project Page: https://www.nccoe.nist.gov/manufacturing