SUPPORTED EVIDENCETESTEDLast reviewed: 2026-07-01

AC-6: Employ the principle of least privilege allowing only authorized accesses necessary for assigned tasks

Vallum evidence mapping for NIST SP 800-53 AC-6 — employ the principle of least privilege allowing only authorized accesses necessary for assigned tasks. This page documents what evidence Vallum produces, what it does not produce, and what remains the customer's responsibility.

Source Attribution

Framework: NIST SP 800-53 Rev 5
Control ID: AC-6
Source Organization: NIST
Official Source: NIST SP 800-53 Rev 5 ↗
Control Objective: Employ the principle of least privilege allowing only authorized accesses necessary for assigned tasks

Evidence Vallum Produces

Authorization receipts documenting each access decision, tenant-scoped permission records, and session lifecycle events

Evidence Vallum Does NOT Produce

Network-level access control logs, physical access records, or operating-system authentication events

Known Limitations

Vallum produces evidence relevant to this control but does not enforce the control at the infrastructure, network, or operating-system level. Evidence covers Vallum-managed operations only. Customer systems, third-party integrations, and infrastructure controls require separate evidence sources.

Your Responsibilities

Implement network-level access controls, manage user provisioning in identity provider, configure authorization policies, and review access periodically

External Controls Required

Identity provider (IdP), network firewall and segmentation, infrastructure monitoring, endpoint protection, and organizational security policies

Residual Risk

Vallum evidence covers authorization and evidence-layer operations. Gaps exist at infrastructure, network, and physical layers that require complementary controls. Time-of-check to time-of-use windows exist between evidence capture and verification.

Relevant Titan Components

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