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Essential EightE8-RA-ML2.9

Essential Eight RA-ML2.9 Event logs are analysed promptly for security events

What it says

Event logs from internet-facing servers are analysed in a timely manner to detect cybersecurity events.

Quoted as published. Everything else on this page is written by Control Stack.

What it means

In plain English

Quickly check logs from servers open to the internet for security issues.

This control is about keeping an eye on the log files from computers or servers that are open to the internet. It's important because if something suspicious or harmful happens, like someone trying to break into your system, you want to know about it quickly so you can stop it.

Why it matters

Neglecting prompt log analysis on internet-facing servers increases the risk of undetected breaches, escalating potential damage and operational disruption.

How to implement

  1. The IT team should ensure that logging is enabled on all internet-facing servers by configuring the server settings to automatically record all activity.

  2. A security officer should set up a schedule for regular log analysis, using automated tools that highlight unusual activity so that logs are checked daily.

  3. The system administrator needs to choose a tool that can send alerts when certain types of suspicious activity are detected in the logs, ensuring timely responses.

  4. The IT team should train staff on what to look for in logs, such as failed access attempts, to help promptly identify potential security events.

  5. The security officer should work with management to create a protocol for responding to identified security events, ensuring everyone knows their role in preventing incidents.

Keep it running

Enable automated alerting on internet-facing server logs and triage alerts within 24 hours; investigate suspicious entries and document findings and actions taken.

Evidence and audit

  1. Check 1 of 3What an auditor asks for

    Ask for

    How often are the logs from internet-facing servers analysed?

    Look at

    Review the schedule or logs of analysis to see frequency.

    Good evidence

    Logs are reviewed daily with automated alerts for suspicious activity.

  2. Check 2 of 3What an auditor asks for

    Ask for

    What tools are in place to help with log analysis?

    Look at

    Examine the software or platforms used for log monitoring.

    Good evidence

    Log monitoring software is in use and configured to alert for anomalies.

  3. Check 3 of 3What an auditor asks for

    Ask for

    What steps are taken when a security event is detected?

    Look at

    Review the incident response procedures.

    Good evidence

    There is a documented protocol involving immediate investigation and escalation to appropriate personnel.

Mappings

Closest match in ASD Information Security Manual: ISM-1906, Timely analysis of internet-facing server logs, which asks for the same thing.

ISO 27001

ISO/IEC 27001: 2 mappings

ASD ISM

ASD Information Security Manual: 12 mappings

ASD Essentials

ASD Essentials for enterprise IT: 1 mapping

Mappings show how controls relate across frameworks. They do not imply full equivalence or certification.