# AU-16 Cross-organizational Audit Logging

NIST SP 800-53 control. Family: AU Audit and Accountability. Function: detective. In no baseline. Mapping licence: CC BY-SA 4.0.

Statement: Employ [Assignment: organization-defined methods] for coordinating [Assignment: organization-defined audit information] among external organizations when audit information is transmitted across organizational boundaries.
Guidance: When organizations use systems or services of external organizations, the audit logging capability necessitates a coordinated, cross-organization approach. For example, maintaining the identity of individuals who request specific services across organizational boundaries may often be difficult, and doing so may prove to have significant performance and privacy ramifications. Therefore, it is often the case that cross-organizational audit logging simply captures the identity of individuals who issue requests at the initial system, and subsequent systems record that the requests originated from authorized individuals. Organizations consider including processes for coordinating audit information requirements and protection of audit information in information exchange agreements.

## Enhancements (3)
- AU-16(01) Identity Preservation
- AU-16(02) Sharing of Audit Information
- AU-16(03) Disassociability
Each enhancement's statement: /api/v1/controls/AU-16?fields=enhancements

## Clauses by framework (14 frameworks)
- iso_27001_2022: 7.5. OSA's own, not in NIST's crosswalk: 7.5
- nist_csf_2: PR.DS-02
- cis_controls_v8: CIS 8.12
- finos_ccc: CCC-C17
- rbi_csf: Annex1.16
- lgpd_bcb: BCB.Art.15
- hkma_tme1: TME1.12.3
- cbb_tm: TM-12
- qatar_nia: OS
- bog_cisd: CISD-COMP
- bot_cyber: Ch6.1
- cmmc_2: AU
- isae_3402: Clause 6
- fca_sysc_13: SYSC 13.9.3
OSA's mapping for iso_27001_2022 and nist_csf_2 takes NIST's published crosswalk as its base. A clause not marked as OSA's own is in that crosswalk.

## More
- This control as JSON, with guidance and ATT&CK techniques: /api/v1/controls/AU-16
- Clauses only: /api/v1/controls/AU-16?fields=mappings
- Page for people: /controls/au-16/
- Found an error? Open an issue at https://github.com/opensecurityarchitecture/osa-data/issues with the id, what OSA says and what the source says.