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ITSP.10.17198
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98 controls

03.08.02Media accessITSP.10.171Media protection

Official Requirement

Restrict access to specified information on system media to authorized personnel or roles.

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

In Plain English

Only authorized personnel or roles should be able to access sensitive information stored on system media. This applies to both physical media and digital storage -- access must be explicitly granted and enforced.

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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 access restriction

Implementation steps

  1. Maintain a list of personnel authorized to access each category of media containing specified information
  2. Enforce physical access restrictions to media storage locations through locks, badge readers, and sign-out procedures
  3. Apply file system permissions and encryption to digital media to prevent unauthorized access
  4. Review and update media access authorizations quarterly, revoking access when no longer needed

Tools / systems

Evidence artifacts

Evidence frequency: Continuous access enforcement; quarterly access review