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98 controls

03.04.05Access restrictions for changeITSP.10.171Configuration management

Official Requirement

Define, document, approve, and enforce physical and logical access restrictions associated with changes to the system.

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

In Plain English

Only authorized personnel should be able to make changes to your systems. This means restricting who can modify configurations, deploy code, and access production environments. Both physical access (to servers, network devices) and logical access (admin credentials, deployment pipelines) must be controlled.

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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

Physical and logical access restrictions for system changes

Implementation steps

  1. Restrict physical access to server rooms and network closets to authorized personnel via badge access or key control
  2. Limit administrative credentials for production systems to approved change implementers; use separate admin accounts
  3. Enforce dual-control or supervisory approval for critical changes to production infrastructure
  4. Log all access to production systems and review for unauthorized access attempts

Tools / systems

Evidence artifacts

Evidence frequency: Continuous enforcement; quarterly authorized personnel review