CMMC Practice Requirement:

Limit use of portable storage devices on external systems.

CMMC Requirement Explanation:

Portable storage devices include thumb drives, CDs, DVDs, external hard drives, and floppy disks. Because they are portable and can contain sensitive information such as “Federal Contract Information” (FCI) and “Controlled Unclassified Information” (CUI) their use must be restricted. Using them on external systems may result in data leaks and other security incidents. External systems include any system not managed by your company.

Example CMMC Implementation:

Write a policy restricting employees from using portable storage devices on external systems. Any exceptions to this policy must be approved by management.

Scenario(s):

- Scenario 1:

By policy, your company has banned the use of portable storage devices on external systems. John, an employee at your company needs to give a presentation at a client site. Due to technical restrictions at the client site he needs to present his power point slides off of a USB thumb drive. John reaches out to your security officer and receives permission to use a USB thumb drive to give his presentation. John is provided with an encrypted USB thumb drive to use for the presentation
 

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