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98 controls

03.12.05Information exchangeITSP.10.171Security assessment and monitoring

Official Requirement

A. Approve and manage the exchange of specified information between the system and other systems using [Selection (one or more): interconnection security agreements; information exchange security agreements; memoranda of understanding or agreement; information sharing arrangements; service level agreements; user agreements; nondisclosure agreements]. B. Document, as part of the exchange agreements, interface characteristics, security and privacy requirements, and responsibilities for each system. C. Review and update the exchange agreements [Assignment: organization-defined frequency].

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

In Plain English

When your system exchanges sensitive information with other systems (internal or external), those exchanges must be governed by formal agreements. The agreements must document what data is exchanged, how the interface works, security requirements, and each party's responsibilities. Agreements must be reviewed and updated regularly.

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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

Information exchange agreement management

Implementation steps

  1. Inventory all system interconnections involving the exchange of specified information and ensure each has a formal agreement in place
  2. Document in each agreement: interface characteristics, data types, security requirements, encryption, and access controls
  3. Specify responsibilities for each party including security monitoring, incident response, and data handling procedures
  4. Schedule and conduct annual reviews of all exchange agreements; update as needed when systems, data flows, or requirements change

Tools / systems

Evidence artifacts

Evidence frequency: Annual agreement review; per-event updates for system or interface changes