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Cloud principles
ASD Essentials

Essentials for cloud

DET-03 Cyber security incident identification

two actionsAlso in ASD Essentials for enterprise IT

Check alerts and events promptly to decide whether they meet your thresholds for a cyber security incident. Look at the signs from all your connected sources together, rather than one signal on its own.

Reviewed 18 October 2026 · Current to ASD's Essentials for cloud, published 15 October 2026

The principle

Cyber security events are analysed in a timely manner to identify cyber security incidents.

ASD, Information Security Manual (ISM), Principle DET-03

The two actions

ASD's actions are quoted as published in Essentials for cloud. ASD has not given them IDs, so they are numbered by position. The letters show who does the work for each service model; our cloud guide explains them.

  • C: Customer
  • S: Supplied
  • P: Provider-inherited

  1. Action 1 of 2

    Triage alerts and events in a timely manner to determine whether cyber security incident thresholds have been met.

    In plain English: Triage (assess and sort) alerts and events promptly. Decide whether they meet your thresholds for a cyber security incident.

    Domains
    Visibility and response
    Who does it
    PaaSSupplied
    SaaSSupplied

  2. Action 2 of 2

    Use available indicators from all connected sources, rather than isolated signals, when performing cyber security incident identification activities.

    In plain English: When you look for cyber security incidents, use the available indicators from all connected sources. Do not rely on single signals in isolation.

    Domains
    Visibility and response
    Who does it
    PaaSSupplied
    SaaSSupplied

See all 30 principles in Essentials for cloud, or read our cloud guide.

Sources

The ASD publications this page quotes.

Quoted ASD material © Commonwealth of Australia 2026, licensed under CC BY 4.0.

Everything else on this page is written by Control Stack.