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ITSP.10.17198
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98 controls

03.01.02Access enforcementITSP.10.171Access control

Official Requirement

Enforce approved authorizations for logical access to specified information and system resources in accordance with applicable access control policies.

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

In Plain English

Your systems must enforce access controls so that users can only reach the data and resources they have been explicitly approved to access. This is not just about having a policy -- the technical controls must actually prevent unauthorized access at the system level.

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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

Logical access enforcement

Implementation steps

  1. Configure NTFS/file system permissions and Active Directory security groups to reflect approved access authorizations
  2. Implement network segmentation and firewall rules to restrict logical access to sensitive system resources
  3. Use application-level access controls (database roles, application RBAC) to enforce authorization at each layer
  4. Audit access control lists periodically and compare against approved authorization records

Tools / systems

Evidence artifacts

Evidence frequency: Quarterly access control review; annual full audit