AC-8: Display system use notification message before granting access
Vallum evidence mapping for NIST SP 800-53 AC-8 — display system use notification message before granting access. 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-8
- Source Organization
- NIST
- Official Source
- NIST SP 800-53 Rev 5 ↗
- Control Objective
- Display system use notification message before granting access
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
Related Content
Related Threats
Need a detailed evidence mapping for your specific compliance program?
Request a Control Evidence Mapping