Essential Eight

The Australian Signals Directorate (ASD) has published Essential 8 – a set of cybersecurity controls that an organisation can use to improve its security posture. There are three levels, and each level builds on the other. There are more than 140 detailed controls.

In Coral, we support implementation through a step-by-step process to ensure these controls are in place, thereby reducing your cybersecurity exposure.

Curious to know more? Please get in touch with us to start the conversation, as we are keen to share our experiences.

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Overall Engagement Plan

Phase I – Gap Analysis & Readiness Assessment

Every organisation has a unique technology landscape, business risk profile, and existing security maturity. Our engagement begins by understanding your environment and measuring your current security posture against the ASD Essential Eight maturity model.

Activities include:

  • Defining the assessment scope
  • Reviewing existing security controls
  • Mapping current controls against the Essential Eight
  • Identifying maturity gaps and implementation priorities
  • Preparing a remediation roadmap with recommended actions

Deliverable

A comprehensive gap assessment report outlining current maturity, identified gaps, risks, and a prioritised implementation plan.

Phase II – Control Implementation

Following the assessment, we work with your IT and security teams to implement the technical and administrative controls required to improve your Essential Eight maturity.

Typical activities include:

  • Secure configuration and hardening guidance
  • Application control implementation support
  • Patch management improvements
  • Multi-factor authentication implementation
  • Privileged access management
  • Microsoft Office and PowerShell hardening
  • Backup protection and recovery validation
  • Security awareness and operational guidance

Deliverable

Implemented controls supported by documented procedures, configuration standards, and operational evidence.

Phase III – Validation & Internal Audit

Once the controls have been implemented, we independently verify that they are operating effectively and producing the evidence required to demonstrate compliance.

Activities include:

  • Control effectiveness reviews
  • Configuration verification
  • Evidence collection and validation
  • Internal compliance assessment
  • Identification of residual risks
  • Remediation recommendations
  • Management reporting

Deliverable

An internal readiness assessment that confirms the organisation's Essential Eight maturity and identifies any remaining improvements.

Phase IV - Operational Handover & Continual Improvement

Cybersecurity requires continual monitoring and maintenance. Before closing the engagement, we help your internal teams transition the implemented controls into day-to-day operational management.

Activities include:

  • Knowledge transfer workshops
  • Operational runbooks and administration guidance
  • Control ownership assignment
  • Monitoring and reporting recommendations
  • Review the calendar and maintenance schedule
  • Support for future maturity improvements

Deliverable

A fully documented operational handover, enabling your teams to maintain and continually improve the Essential Eight controls as part of business-as-usual operations.

Essential Eight Maturity Level 1 Maturity Level 2 Maturity Level 3
Patch applications 45
total requirements
107
total requirements
148
total requirements
Patch operating systems
Multi-factor authentication
Restrict administrative privileges
Application control
Restrict Microsoft Office macros
User application hardening
Regular backups

Why Coral?

Our objective extends beyond achieving a target maturity level. We implement practical, sustainable security controls that become part of your organisation's operational processes. By combining technical implementation, governance, documentation, independent validation, and knowledge transfer, we help organisations establish a mature cybersecurity program that strengthens resilience, reduces cyber risk, and supports long-term compliance.

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