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ITSP.10.17198
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98 controls

03.08.04Media markingITSP.10.171Media protection

Official Requirement

Mark system media containing specified information to indicate distribution limitations, handling caveats, and applicable specified information markings.

Source: Canadian Centre for Cyber Security ITSP.10.171 (2025), adapted from NIST SP 800-171 Rev. 3

In Plain English

All media containing sensitive information must be clearly marked with labels indicating its sensitivity level, who can access it, any handling restrictions, and distribution limitations. This ensures anyone who encounters the media knows how to handle it properly.

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The Trust Services Criteria referenced in this tool are published by the American Institute of Certified Public Accountants (AICPA) and incorporate principles from the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Criteria descriptions are reproduced for reference purposes. All implementation guidance, evidence recommendations, and control language are original work by Truvo Cyber. ISO 27001 and ISO 42001 are standards published by the International Organization for Standardization (ISO). Framework and standard names are the property of their respective owners. This tool is not affiliated with, endorsed by, or certified by AICPA, COSO, or ISO.

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On-premises implementation and evidence

Media marking and labeling

Implementation steps

  1. Establish marking standards defining required labels for each sensitivity level, including distribution limitations and handling caveats
  2. Label all physical media (tapes, drives, discs) with appropriate classification markings before placing into storage or transit
  3. Include handling instructions on labels (e.g., 'Do not remove from facility', 'Authorized personnel only')
  4. Audit media markings during quarterly inventory reviews to verify compliance

Tools / systems

Evidence artifacts

Evidence frequency: Continuous marking at creation; quarterly marking compliance audit