TPM-05.1: Security Compromise Notification Agreements
Mechanisms exist to compel External Service Providers (ESPs) to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected Technology Assets, Applications and/or Services (TAAS) that the organization utilizes.
Control Question: Does the organization compel External Service Providers (ESPs) to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected Technology Assets, Applications and/or Services (TAAS) that the organization utilizes?
General (22)
| Framework | Mapping Values |
|---|---|
| AICPA TSC 2017:2022 (used for SOC 2) (source) | CC2.3-POF12 CC9.2-POF13 |
| CSA CCM 4 | STA-02 |
| CSA IoT SCF 2 | POL-01 |
| ISO 27002 2022 | 5.21 |
| NIST 800-53 R5 (source) | SR-8 |
| NIST 800-53B R5 (low) (source) | SR-8 |
| NIST 800-53B R5 (moderate) (source) | SR-8 |
| NIST 800-53B R5 (high) (source) | SR-8 |
| NIST 800-82 R3 LOW OT Overlay | SR-8 |
| NIST 800-82 R3 MODERATE OT Overlay | SR-8 |
| NIST 800-82 R3 HIGH OT Overlay | SR-8 |
| NIST 800-161 R1 | SR-8 |
| NIST 800-161 R1 C-SCRM Baseline | SR-8 |
| NIST 800-161 R1 Level 2 | SR-8 |
| NIST 800-161 R1 Level 3 | SR-8 |
| NIST 800-171 R3 (source) | 03.17.02 |
| Shared Assessments SIG 2025 | P.8 |
| TISAX ISA 6 | 8.3.1 |
| SCF CORE Mergers, Acquisitions & Divestitures (MA&D) | TPM-05.1 |
| SCF CORE ESP Level 1 Foundational | TPM-05.1 |
| SCF CORE ESP Level 2 Critical Infrastructure | TPM-05.1 |
| SCF CORE ESP Level 3 Advanced Threats | TPM-05.1 |
US (12)
| Framework | Mapping Values |
|---|---|
| US CISA CPG 2022 | 1.G |
| US FedRAMP R5 (source) | SR-8 |
| US FedRAMP R5 (low) (source) | SR-8 |
| US FedRAMP R5 (moderate) (source) | SR-8 |
| US FedRAMP R5 (high) (source) | SR-8 |
| US FedRAMP R5 (LI-SaaS) (source) | SR-8 |
| US HIPAA Administrative Simplification 2013 (source) | 164.314(a)(2)(i)(C) 164.314(b)(2)(iv) 164.410(a)(1) 164.410(a)(2) 164.410(b) 164.410(c)(2) |
| US HIPAA Security Rule / NIST SP 800-66 R2 (source) | 164.314(a)(2)(i)(C) 164.314(b)(2)(iv) |
| US NERC CIP 2024 (source) | CIP-013-2 1.2.1 |
| US - CA CCPA 2025 | 7123(c)(15) |
| US - NY DFS 23 NYCRR500 2023 Amd 2 | 500.11(b)(3) 500.4(a)(1) 500.4(a)(2) 500.4(a)(3) |
| US - TX DIR Control Standards 2.0 | SR-8 |
APAC (2)
| Framework | Mapping Values |
|---|---|
| APAC Australia ISM June 2024 | ISM-1576 |
| APAC New Zealand NZISM 3.6 | 7.2.22.C.01 7.2.23.C.01 |
Americas (1)
| Framework | Mapping Values |
|---|---|
| Americas Canada ITSP-10-171 | 03.17.02 |
Capability Maturity Model
Level 0 — Not Performed
There is no evidence of a capability to compel Third-Party Service Providers (TSP) to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected Technology Assets, Applications and/or Services (TAAS) that the organization utilizes.
Level 1 — Performed Informally
C|P-CMM1 is N/A, since a structured process is required to compel Third-Party Service Providers (TSP) to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected Technology Assets, Applications and/or Services (TAAS) that the organization utilizes.
Level 2 — Planned & Tracked
Third-Party Management (TPM) efforts are requirements-driven and governed at a local/regional level, but are not consistent across the organization. CMM Level 2 control maturity would reasonably expect all, or at least most, the following criteria to exist: o Require TSP to follow secure engineering practices as part of a broader Cybersecurity Supply Chain Risk Management (C-SCRM) initiative. o Contain "break clauses" in all TSP contracts to enable penalty-free, early termination of a contract for cause, based on the TSP's cybersecurity and/ or data privacy practices deficiency(ies).
- Third-party management is decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices.
- IT/cybersecurity personnel identify cybersecurity and data protection controls to address applicable statutory, regulatory and contractual requirements for third-party management.
- A procurement function maintains a list of all active Third-Party Service Providers (TSP), including pertinent contract information that will assist in a risk assessment.
- A Shared Responsibility Matrix (SRM) is documented for every TSP that directly or indirectly affects sensitive/regulated data.
- Procurement contracts:
Level 3 — Well Defined
Third-Party Management (TPM) efforts are standardized across the organization and centrally managed, where technically feasible, to ensure consistency. CMM Level 3 control maturity would reasonably expect all, or at least most, the following criteria to exist: o provides governance oversight for the implementation of applicable statutory, regulatory and contractual cybersecurity and data protection controls to protect the confidentiality, integrity, availability and safety of the organization's applications, systems, services and data with regards to third-party management. o Operates the Cybersecurity Supply Chain Risk Management (C-SCRM) program to identify and mitigate supply chain-related risks and threats. o Evaluates risks associated with weaknesses or deficiencies in supply chain elements identified during first and/ or third-party reviews. o Enables the implementation of third-party management controls. o Ensures the Information Assurance Program (IAP) evaluates applicable cybersecurity and data protection controls as part of “business as usual” pre-production testing. o Maintains a list of all active Third-Party Service Providers (TSP), including pertinent contract information that will assist in a risk assessment. o Requires TSP to follow secure engineering practices as part of a broader Cybersecurity Supply Chain Risk Management (C-SCRM) initiative. o Includes "break clauses" in all TSP contracts to enable penalty-free, early termination of a contract for cause, based on the TSP's cybersecurity and/ or data privacy practices deficiency(ies). o Controls changes to services by suppliers, taking into account the criticality of business information, systems and processes that are in scope by the third-party. o Requires a risk assessment prior to the acquisition or outsourcing of technology-related services. o Monitors, regularly reviews and audits supplier service delivery for compliance with established contract agreements. o Uses tailored acquisition strategies, contract tools and procurement methods for the purchase of unique systems, system components or services.
- Procurement contracts and layered defenses provide safeguards to limit harm from potential adversaries who identify and target the organization's supply chain.
- A Governance, Risk & Compliance (GRC) function, or similar function;
- A procurement team, or similar function:
- A Shared Responsibility Matrix (SRM) is documented for every TSP that directly or indirectly affects sensitive/regulated data.
Level 4 — Quantitatively Controlled
See C|P-CMM3. There are no defined C|P-CMM4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to compel Third-Party Service Providers (TSP) to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected Technology Assets, Applications and/or Services (TAAS) that the organization utilizes.
Level 5 — Continuously Improving
See C|P-CMM4. There are no defined C|P-CMM5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to compel Third-Party Service Providers (TSP) to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected Technology Assets, Applications and/or Services (TAAS) that the organization utilizes.
Assessment Objectives
- TPM-05.1_A01 security requirements to be satisfied by external system service providers are defined.
- TPM-05.1_A02 agreements and procedures are established with entities involved in the supply chain for the system, system components or system service per organization-defined criteria.
- TPM-05.1_A03 External Service Providers (ESPs) are contractually obligated to provide notification of actual or potential compromises in the supply chain that can potentially affect or have adversely affected systems, applications and/or services that the organization utilizes.
Technology Recommendations
Micro/Small
- Cybersecurity Supply Chain Risk Management (C-SCRM) program
- Data Protection Impact Assessment (DPIA)
- Third-party contract requirements for cybersecurity controls
Small
- Cybersecurity Supply Chain Risk Management (C-SCRM) program
- Data Protection Impact Assessment (DPIA)
- Third-party contract requirements for cybersecurity controls
Medium
- Cybersecurity Supply Chain Risk Management (C-SCRM) program
- Data Protection Impact Assessment (DPIA)
- Third-party contract requirements for cybersecurity controls
Large
- Cybersecurity Supply Chain Risk Management (C-SCRM) program
- Data Protection Impact Assessment (DPIA)
- Third-party contract requirements for cybersecurity controls
Enterprise
- Cybersecurity Supply Chain Risk Management (C-SCRM) program
- Data Protection Impact Assessment (DPIA)
- Third-party contract requirements for cybersecurity controls