📋ISO 27001 A.5.10Rule: ISO27001-A510medium

Acceptable Use of Information and Other Associated Assets

Description

Rules for the acceptable use of information and other associated assets shall be identified, documented, and implemented.

⚠️ Risk Impact

Without an Acceptable Use Policy (AUP), staff actions that constitute misuse are legally ambiguous. Disciplinary actions for misuse require a clearly documented policy the employee acknowledged.

🔍 How EchelonGraph Detects This

ISO27001-A510Automated scanner rule

EchelonGraph's Tier 1 Cloud Scanner automatically checks for this condition across all connected cloud accounts. Violations are flagged as medium-severity findings with remediation guidance.

🔧 Remediation

Publish an AUP covering: data handling, social media, AI tool use, BYOD, remote work. Require annual acknowledgement via HRIS. Update annually as the threat landscape and tool landscape evolve.

💀 Real-World Attack Scenario

An engineer pasted production customer data into ChatGPT to debug an issue (Apr 2023 Samsung-style incident). Investigation revealed no AUP covering AI tools; the company couldn't discipline the engineer because the action wasn't explicitly prohibited. They also couldn't establish negligence in the resulting data-leak claim.

💰 Cost of Non-Compliance

AUP-absent disciplinary cases: 78% lose in employment tribunal (UK ACAS 2024). GDPR liability for unsanctioned data sharing: up to €20M / 4% revenue.

📋 Audit Questions

  • 1.Show the current AUP.
  • 2.Does it cover AI tool use, BYOD, and remote work?
  • 3.What is the annual acknowledgement rate?
  • 4.Show last AUP update — what changed?

🎯 MITRE ATT&CK Mapping

T1530 — Data from Cloud Storage

⚡ Common Pitfalls

  • AUP that doesn't address AI tool use (most pre-2023 AUPs)
  • Acknowledgement rates below 90% (auditors flag this)
  • No mechanism to update AUP as new tools and threats emerge

📈 Business Value

Lived AUP provides legal defensibility for disciplinary action + audit-defensible evidence of governance.

⏱️ Effort Estimate

Manual

16-24 hours initial authoring + 4 hours annual refresh

With EchelonGraph

EchelonGraph tracks acknowledgement via IdP/HRIS integration

🔗 Cross-Framework References

SOC2-CC1.1NIST_AI_RMF-GOVERN-1.4

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