📋ISO 27001 A.8.15Rule: ISO27001-A815high

Logging

Description

Logs that record activities, exceptions, faults, and other relevant events shall be produced, stored, protected, and analysed.

⚠️ Risk Impact

Logs you don't collect can't be reviewed. Events you don't log are invisible during incident response.

🔍 How EchelonGraph Detects This

ISO27001-A815Automated scanner rule

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

🔧 Remediation

Document log policy: which event categories logged. Apply consistently across cloud, application, infrastructure. Centralise to SIEM. Retain 12+ months. Test event coverage via deliberate adversarial actions.

💀 Real-World Attack Scenario

An attacker compromised an AWS IAM user + downloaded 47GB of customer data over 6 weeks. CloudTrail logged API calls; S3 server-access logging was disabled 'to reduce log volume'. Investigation couldn't see exfil details. Disabled logging directly contributed to detection delay.

💰 Cost of Non-Compliance

Detection gap from undocumented logging: avg 65 days longer dwell time (Mandiant M-Trends 2024).

📋 Audit Questions

  • 1.Event-logging policy documented?
  • 2.Walk through actual incident — were right logs available?
  • 3.Log coverage tested?
  • 4.Are application-layer events logged?

🎯 MITRE ATT&CK Mapping

T1562.008 — Disable Cloud Logs

⚡ Common Pitfalls

  • Disabling logs for cost without documenting risk acceptance
  • Default cloud logging that misses data-plane events
  • Application events not logged

📈 Business Value

Comprehensive event logging is the substrate every other security capability rests on.

⏱️ Effort Estimate

Manual

20-40 hours log policy + verification

With EchelonGraph

EchelonGraph evaluates log coverage; flags gaps

🔗 Cross-Framework References

SOC2-CC7.1NIST-AU-2

Automate ISO 27001 A.8.15 compliance

EchelonGraph continuously monitors this control across all your cloud accounts.

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