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TPM-08: Third-Party Inventories

TPM 8 — High Identify

Mechanisms exist to maintain a current, accurate and complete list of External Service Providers (ESPs) that can potentially impact the Confidentiality, Integrity, Availability and/or Safety (CIAS) of the organization's Technology Assets, Applications, Services and/or Data (TAASD).

Renumbered: Formerly TPM-01.1 in SCF 2025.4.

Code reused: In SCF 2025.4 and earlier, TPM-08 was Review of Third-Party Services. That control is now TPM-15.

Control Question: Does the organization maintain a current, accurate and complete list of External Service Providers (ESPs) that can potentially impact the Confidentiality, Integrity, Availability and/or Safety (CIAS) of its Technology Assets, Applications, Services and/or Data (TAASD)?

General (31)
US (6)
Framework Mapping Values
USA Federal CISA CPG 2022 1.A 1.G 1.H
USA Federal C2M2 2.1 THIRD-PARTIES-1b THIRD-PARTIES-1d
USA Federal CERT RMM 1.2 EXD:SG1 EXD:SG1.SP1
USA California CCPA 2025 7024(l) 7123(c)(15)
USA New York DFS 23 NYCRR500 2023 Amd 2 500.11(a)(1)
USA Virginia CDPA 2023 59.1-578.C.5
EMEA (6)
Framework Mapping Values
EMEA Germany C5 2026 OPS-32.01B.4 SSO-04.01B SSO-04.01B.1 SSO-04.01B.2 SSO-04.01B.3 SSO-04.01B.4 SSO-04.01B.5 SSO-04.01B.6 SSO-04.01B.7 SSO-04.01B.9 SSO-04.02B SSO-07.01B.2 SSO-07.02B SSO-07.01AS.2
EMEA Spain CCN-STIC 825 op.ext.1
EMEA EU DORA 2023 Article 28.1 Article 28.1(a) Article 28.1(b) Article 28.1(b)(i) Article 28.1(b)(ii) Article 28.2 Article 28.3 Article 28.4(a) Article 28.4(b) Article 28.4(c) Article 28.4(d) Article 28.4(e) Article 28.5 Article 28.6 Article 28.7(a) Article 28.7(b) Article 28.7(c) Article 28.7(d) Article 28.8 Article 28.8(a) Article 28.8(b) Article 28.8(c)
EMEA EU NIS2 2022 Article 21.3
EMEA EU NIS2 Annex 2024 5.2 5.2(a)
EMEA LUX CCSF 22/806 2022 14.d 40.e 53 54 54.a 54.b 54.c 54.d 54.e 54.f 54.g 54.h 54.i 55 55.a 55.b 55.c 55.d 55.e 55.f 55.g 55.h 55.i 55.j 55.k 55.l 56 79 145
APAC (6)
Framework Mapping Values
APAC Australia ISM June 2026 ISM-1631 ISM-1637 ISM-1638 ISM-1736 ISM-1737 ISM-1786
APAC Australia Prudential Standard CPS230 2023 49 51
APAC India RBI PPI 2025 16.2.f
APAC India SEBI CSCRF 2024 GV.OC.S3 GV.SC.S1 GV.SC.S2
APAC Malaysia RMiT 2025 16.2(f) A10-B6(b)
APAC Singapore CCOP CII 2026 4.1.1(g) 12.1.1(g)
Americas (1)
Framework Mapping Values
Americas Canada ITSP-10-171 2025 03.07.06.A 03.07.06.B

Capability Maturity Model

Level 0 — Not Performed

Practices are non-existent, based on the inability to demonstrate an implemented and operational capability. A reasonable person would conclude the control is not being performed.

Level 1 — Performed Informally

SCR-CMM Level 1 criteria definitions are not available for this control: ▪ A reasonable person would conclude this control requires a structured process. ▪ At this level of maturity, the "ad hoc" nature of performing a capability informally would indicate the intent of the control is not met due to a lack of consistency and formality.

Level 2 — Planned & Tracked

Third-Party Management (TPM) capabilities are requirements-driven, but are not standardized across the entity (e.g., local/regional level consistency). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with TPM domain capabilities are formally documented and centrally-managed by the entity. ▪ Standardized Operating Procedures (SOP) associated with TPM domain capabilities are documented and maintained by process owners. ▪ IT and/or cybersecurity personnel work with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with TPM domain capabilities to address applicable statutory, regulatory and/or contractual requirements for Technology Assets, Applications, Services and/or Data (TAASD). ▪ Third-party management-related controls are primarily administrative and preventative in nature (e.g., policies, standards and procedures & guidelines). ▪ Asset management may be a defined function (e.g., team or department) or assigned as an additional duty to existing IT and/or cybersecurity personnel. ▪ A procurement function maintains a list of all active External Service Providers (ESPs), including pertinent contract information that will assist in a risk assessment.

Level 3 — Well Defined

Third-Party Management (TPM) capabilities are standardized across the entity for applicability to People, Processes, Technologies, Data and/or Facilities (PPTDF) to ensure consistency for Technology Assets, Applications, Services and/or Data (TAASD). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with TPM domain capabilities are formally documented and centrally-managed by the entity's Governance, Risk & Compliance (GRC) team, or similar function. ▪ Standardized Operating Procedures (SOP) associated with TPM domain capabilities are well-documented and kept current by process owners. ▪ A procurement team, or similar function, is appropriately staffed and supported to implement and maintain TPM domain capabilities. ▪ Technology is leveraged to enhance the efficiency and accuracy of third-party management operations (e.g., TPRM risk management solution and vendor management solution). ▪ The entity's Governance, Risk & Compliance (GRC) team, or similar function, works with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with TPM domain capabilities to address Minimum Compliance Requirements (MCR) (e.g., applicable statutory, regulatory and/or contractual requirements) and Discretionary Security Requirements (DSR) (e.g., entity-required controls). ▪ An implemented and operational capability exists to maintain a current, accurate and complete list of External Service Providers (ESPs) that can potentially impact the Confidentiality, Integrity, Availability and/or Safety (CIAS) of the organization's TAASD.

Level 4 — Quantitatively Controlled

Utilize SCR-CMM Level 3 criteria definitions: ▪ There are no defined Level 4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to operationalize this control. ▪ While it may be possible to develop “metrics-driven” capabilities for this control, the criteria would be organization-specific to define.

Level 5 — Continuously Improving

Utilize SCR-CMM Level 3 or Level 4 (if available) criteria definitions: ▪ There are no defined Level 5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to operationalize this control. ▪ Level 5 capabilities should be considered “world-class” where the control builds on Level 4 capabilities, but are continuously improving through Artificial Intelligence (AI) and/or Machine Learning (ML) technologies. ▪ While it may be possible to develop responsive capabilities for this control through the use of AI and/or ML technologies, the criteria would be organization-specific to define.

Assessment Objectives

  1. TPM-08_A01 a current, accurate and complete list of Third-Party Service Providers (TSP) that can potentially impact the Sensitivity, Integrity, Availability and/or Safety (CIAS) of the organization's systems, applications, services and data is maintained.

Evidence Requirements

E-AST-06 Asset Inventories - Cloud Service Provider (CSP)

Documented evidence of an inventory of the organization's cloud-based services (e.g., SaaS, IaaS, PaaS, etc.).

Asset Management
E-DCH-06 Third-Party Inventories

Documented evidence of an inventory of External Service Providers (ESP), contractors, vendors, etc. that directly or indirectly impact the organization's Technology Assets, Applications, Services and/or Data (TAASD).

Data Protection

Technology Recommendations

Micro/Small

  • Cybersecurity Supply Chain Risk Management (C-SCRM) program

Small

  • Cybersecurity Supply Chain Risk Management (C-SCRM) program

Medium

  • Cybersecurity Supply Chain Risk Management (C-SCRM) program

Large

  • Cybersecurity Supply Chain Risk Management (C-SCRM) program

Enterprise

  • Cybersecurity Supply Chain Risk Management (C-SCRM) program

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