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TPM-12.3: Third-Party Authentication Practices

TPM 8 — High Protect

Mechanisms exist to ensure External Service Providers (ESPs) use unique authentication factors for each of its customers.

Renumbered: Formerly TPM-05.3 in SCF 2025.4.

Control Question: Does the organization ensure External Service Providers (ESPs) use unique authentication factors for each of its customers?

General (3)
Framework Mapping Values
NIST CSF 2.0 (source) GV.SC-06 GV.SC-10
PCI DSS 4.0.1 (source) 8.2.3
PCI DSS 4.0.1 SAQ D Service Provider (source) 8.2.3
US (1)
Framework Mapping Values
USA New York DFS 23 NYCRR500 2023 Amd 2 500.11(b)(1)
APAC (1)
Framework Mapping Values
APAC Malaysia RMiT 2025 A8-2(f)

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.

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 ensure External Service Providers (ESPs) use unique authentication factors for each of its customers.

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-12.3_A01 Third-Party Service Providers (TSP) are obligated to use unique authentication factors for each of its customers.

Evidence Requirements

E-TPM-01 Third-Party Contracts

Documented evidence of third-party contractual obligations for cybersecurity & data privacy protections.

Third-Party Management

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

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