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IAC-32: Identification & Authentication for Organizational Users

IAC 9 — Critical Protect

Mechanisms exist to uniquely identify and centrally Authenticate, Authorize and Audit (AAA) organizational users and processes acting on behalf of organizational users.

Renumbered: Formerly IAC-02 in SCF 2025.4.

Control Question: Does the organization uniquely identify and centrally Authenticate, Authorize and Audit (AAA) organizational users and processes acting on behalf of organizational users?

General (50)
Framework Mapping Values
AICPA TSC 2017:2022 (used for SOC 2) (source) CC6.1 CC6.1-POF3 CC6.1-POF4 CC6.1-POF8
CIS CSC 8.1 5.5 5.6 6.7 12.5
CIS CSC 8.1 IG2 5.5 5.6 6.7 12.5
CIS CSC 8.1 IG3 5.5 5.6 6.7 12.5
CSA CCM 4.1.0 IAM-13
GovRAMP IA-02
GovRAMP Core IA-02
GovRAMP Low IA-02
GovRAMP Low+ IA-02
GovRAMP Moderate IA-02
GovRAMP High IA-02
IEC 62443-2-1 2024 USER 1.1
IEC 62443-3-3 2013 SR 1.1 SR 1.1 RE 1
IEC 62443-4-2 2019 CR 1.1
ISO 27002 2022 5.15
ISO 27017 2015 9.1.1
ISO 27018 2025 5.15
MITRE ATT&CK 16 T1003 T1003.001 T1003.002 T1003.003 T1003.004 T1003.005 T1003.006 T1003.007 T1003.008 T1021 T1021.001 T1021.002 T1021.003 T1021.004 T1021.005 T1021.006 T1021.007 T1021.008 T1036.007 T1036.010 T1040 T1047 T1053 T1053.002 T1053.003 T1053.005 T1053.006 T1053.007 T1055 T1055.008 T1056.003 T1059 T1059.001 T1059.008 T1059.009 T1072 T1078 T1078.002 T1078.003 T1078.004 T1087.004 T1098 T1098.001 T1098.002 T1098.003 T1098.004 T1098.007 T1110 T1110.001 T1110.002 T1110.003 T1110.004 T1111 T1114 T1114.002 T1133 T1134 T1134.001 T1134.002 T1134.003 T1136 T1136.001 T1136.002 T1136.003 T1185 T1190 T1197 T1210 T1212 T1213 T1213.001 T1213.002 T1213.003 T1213.004 T1213.005 T1218 T1218.007 T1222 T1222.001 T1222.002 T1484 T1489 T1495 T1505 T1505.002 T1505.004 T1525 T1528 T1530 T1537 T1538 T1539 T1542 T1542.001 T1542.003 T1542.005 T1543 T1543.001 T1543.002 T1543.003 T1543.004 T1543.005 T1546.003 T1547.004 T1547.006 T1547.009 T1547.012 T1547.013 T1548 T1548.002 T1548.003 T1550 T1550.001 T1550.002 T1550.003 T1552 T1552.001 T1552.002 T1552.004 T1552.006 T1552.007 T1555.005 T1556 T1556.001 T1556.003 T1556.004 T1556.006 T1556.007 T1556.009 T1558 T1558.001 T1558.002 T1558.003 T1558.004 T1558.005 T1559 T1559.001 T1562 T1562.001 T1562.002 T1562.004 T1562.006 T1562.007 T1562.008 T1562.009 T1563 T1563.001 T1563.002 T1569 T1569.001 T1569.002 T1574 T1574.005 T1574.010 T1574.012 T1578 T1578.001 T1578.002 T1578.003 T1580 T1599 T1599.001 T1601 T1601.001 T1601.002 T1610 T1611 T1613 T1619 T1621 T1648 T1649 T1651
MPA Content Security Program 5.3.1 TS-1.6
NIST 800-53 R4 IA-2
NIST 800-53 R5.2 IA-02
NIST 800-53B R5 (low) (source) IA-02
NIST 800-53B R5 (moderate) (source) IA-02
NIST 800-53B R5 (high) (source) IA-02
NIST SP 800-66 R2 164.312(a)
NIST 800-82 R3 IA-02
NIST 800-82 R3 LOW OT Overlay IA-02
NIST 800-82 R3 MODERATE OT Overlay IA-02
NIST 800-82 R3 HIGH OT Overlay IA-02
NIST 800-161 R1 IA-2
NIST 800-161 R1 C-SCRM Baseline IA-2
NIST 800-161 R1 Flow Down IA-2
NIST 800-161 R1 Level 1 IA-2
NIST 800-161 R1 Level 2 IA-2
NIST 800-161 R1 Level 3 IA-2
NIST 800-171 R2 (source) 3.1.1 3.5.1 3.5.2
NIST 800-171 R3 (source) 03.05.01.a 03.05.05.d
NIST 800-171A (source) 3.5.1[a] 3.5.1[b] 3.5.1[c] 3.5.2[a] 3.5.2[b] 3.5.2[c]
NIST 800-171A R3 (source) A.03.05.01.a[03] A.03.05.05.d
NIST 800-207 NIST Tenet 3
NIST CSF 2.0 (source) PR.AA-01 PR.AA-03 PR.AA-05
NIST Privacy Framework 1.0 PR.AC-P6
PCI DSS 4.0.1 (source) 7.1 7.2 7.2.1 7.3 7.3.1 7.3.2 7.3.3 8.1 8.2 8.3 8.3.3 8.3.9
PCI DSS 4.0.1 SAQ A (source) 8.3.9
PCI DSS 4.0.1 SAQ A-EP (source) 8.3.3 8.3.9
PCI DSS 4.0.1 SAQ C (source) 8.3.3 8.3.9
PCI DSS 4.0.1 SAQ D Merchant (source) 7.2.1 7.3.1 7.3.2 7.3.3 8.3.3 8.3.9
PCI DSS 4.0.1 SAQ D Service Provider (source) 7.2.1 7.3.1 7.3.2 7.3.3 8.3.3 8.3.9
SPARTA 4.0 CM0031
TISAX ISA 6.0.3 4.1.2 4.1.3
US (17)
Framework Mapping Values
USA Federal CMS MARS-E 2.0 IA-2 IA-2-IS.1 IA-2-IS.2 IA-2-IS.3
USA Federal CMMC 2.0 Level 1 AC.L1-B.1.I IA.L1-B.1.V IA.L1-B.1.VI
USA Federal CMMC 2.0 Level 1 AOs IA.L1-B.1.V[a] IA.L1-B.1.V[c] IA.L1-B.1.VI[a] IA.L1-B.1.VI[b] IA.L1-B.1.VI[c]
USA Federal CMMC 2.0 Level 2 ACL2.-3.1.1 IAL2.-3.5.1 IAL2.-3.5.2
USA Federal FAR 52.204-21 52.204-21(b)(1)(i) 52.204-21(b)(1)(v) 52.204-21(b)(1)(vi)
USA Federal CJIS Security Policy 6.0 IA-2
USA Federal 21 CFR Part 11 2025 11.10 11.10(d)
USA Federal FedRAMP R5 (low) IA-02
USA Federal FedRAMP R5 (moderate) IA-02
USA Federal FedRAMP R5 (high) IA-02
USA Federal FedRAMP R5 (LI-SaaS) IA-02
USA Federal HIPAA Security Rule NIST SP 800-66 R2 § 164.312(a)(2)(i)
USA Federal HIPAA Administrative Simplification 2013 § 164.312(a)(2)(i)
USA California CCPA 2025 7123(c)(3)(A)(i)
USA Texas DIR SCSC 2.2 2025 IA-02
USA Texas TX-RAMP Level 1 IA-02
USA Texas TX-RAMP Level 2 IA-02
EMEA (12)
Framework Mapping Values
EMEA Germany C5 2026 IAM-06.03B IAM-07.03AC.4 IAM-08.01B IAM-08.07B
EMEA Spain CCN-STIC 825 op.acc.2
EMEA EU DORA RTS 2024 Article 20.1 Article 20.2(a) Article 21.1(c) Article 33.1(b) Article 33.1(d)
EMEA EU NIS2 Annex 2024 11.5.2(a)
EMEA UK CAF 4.0 B2.a
EMEA UK DEFSTAN 05-138 2024 2218
EMEA UK DEFSTAN 05-138 - L1 2024 2218
EMEA UK DEFSTAN 05-138 - L2 2024 2218
EMEA UK DEFSTAN 05-138 - L3 2024 2218
EMEA LUX CCSF 20/750 2020 3.4.2-31.b
EMEA Saudi Arabia OTCC-1 2022 2-2-1-2
EMEA Saudi Arabia SACS-002 2022 VII.B.TPC-32
APAC (3)
Framework Mapping Values
APAC Australia ISM June 2026 ISM-0414 ISM-0415 ISM-1546
APAC New Zealand NZISM 3.9 16.1.32.C.01
APAC Singapore CCOP CII 2026 10.2.3
Americas (1)
Framework Mapping Values
Americas Canada ITSP-10-171 2025 03.05.01.A 03.05.05.D

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

Identification & Authentication (IAC) domain capabilities are ad hoc and inconsistent. Capability criteria associated with this control may include: ▪ Policies, standards & procedures associated with IAC domain capabilities provide limited coverage due to the depth and breadth of the existing documentation. ▪ Identity & Access Management (IAM)-related activities are decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices. ▪ IAM controls are primarily administrative in nature (e.g., policies & standards) to manage accounts and permissions. ▪ IT and/or cybersecurity personnel identify and implement IAM cybersecurity and data protection controls that are appropriate to address applicable statutory, regulatory and contractual requirements. ▪ Active Directory (AD), or a similar technologies, are used to centrally manage identities and permissions, but asset/process owners are authorized to operate a decentralized access control program for their specific Technology Assets, Applications, Services and/or Data (TAASD).

Level 2 — Planned & Tracked

Identification & Authentication (IAC) 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 IAC domain capabilities are formally documented and centrally-managed by the entity. ▪ Standardized Operating Procedures (SOP) associated with IAC 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 IAC domain capabilities to address applicable statutory, regulatory and/or contractual requirements for Technology Assets, Applications, Services and/or Data (TAASD). ▪ Identity & Access Management (IAM)-related controls are primarily administrative and preventative in nature (e.g., policies, standards and procedures & guidelines) to enforce Logical Access Control (LAC). ▪ IAM may be a defined function (e.g., team or department) or assigned as an additional duty to existing IT and/or cybersecurity personnel to implement Role Based Access Control (RBAC) practices for the management of user, group and system accounts, including privileged accounts. ▪ A directory services technology is used to centrally manage identities and permissions with RBAC. Due to technical or business limitations, asset/process owners are empowered to operate a decentralized access control program for their specific Technology Assets, Applications and/or Services (TAAS) that cannot be integrated into directory services. ▪ Configuration management and IAM functions collaborate to ensure Secure Baseline Configurations (SBC) enforce “least privileges” on TAAS.

Level 3 — Well Defined

Identification & Authentication (IAC) 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 IAC 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 IAC domain capabilities are well-documented and kept current by process owners. ▪ An Identity & Access Management (IAM) team, or similar function, is appropriately staffed and supported to implement and maintain IAC domain capabilities. ▪ Technology is leveraged to enhance the efficiency and accuracy of IAM operations (e.g., directory services, Authenticate, Authorize and Audit (AAA) 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 IAC 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 uniquely identify and centrally Authenticate, Authorize and Audit (AAA) organizational users and processes acting on behalf of organizational users.

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. IAC-32_A01 system, application and service users are identified.
  2. IAC-32_A02 the identity of each user is authenticated or verified as a prerequisite to system access.
  3. IAC-32_A03 processes acting on behalf of users are associated with uniquely identified and authenticated system users.
  4. IAC-32_A04 the identity of each process acting on behalf of a user is authenticated or verified as a prerequisite to system access.
  5. IAC-32_A05 the identity of each device accessing or connecting to the system is authenticated or verified as a prerequisite to system access.
  6. IAC-32_A06 the unique identification of authenticated organizational users is associated with processes acting on behalf of those users.
  7. IAC-32_A07 devices accessing the system are identified.
  8. IAC-32_A08 individual identifiers are managed by uniquely identifying each individual as <A.03.05.05.ODP[02]: characteristic>.

Evidence Requirements

E-IAC-05 Identity & Access Management (IAM) Function

Documented evidence of an Identity & Access Management (IAM), or similar function, that facilitates the implementation of identification and access management controls.

Identity & Access Management
E-IAC-06 Authenticate, Authorize and Audit (AAA) Solution

Documented evidence of an Authenticate, Authorize and Audit (AAA) solution (on-premises and hosted by External Service Providers (ESP)).

Identity & Access Management

Technology Recommendations

Micro/Small

  • Microsoft Active Directory (https://microsoft.com)
  • Microsoft Entra (https://microsoft.com)
  • AWS IAM (https://aws.amazon.com)

Small

  • Microsoft Active Directory (https://microsoft.com)
  • Microsoft Entra (https://microsoft.com)
  • AWS IAM (https://aws.amazon.com)

Medium

  • Microsoft Active Directory (https://microsoft.com)
  • Microsoft Entra (https://microsoft.com)
  • AWS IAM (https://aws.amazon.com)

Large

  • Microsoft Active Directory (https://microsoft.com)
  • Microsoft Entra (https://microsoft.com)
  • AWS IAM (https://aws.amazon.com)

Enterprise

  • Microsoft Active Directory (https://microsoft.com)
  • Microsoft Entra (https://microsoft.com)
  • AWS IAM (https://aws.amazon.com)

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