Cyber Security & ICT Engineering in Canberra
Serving Canberra Organisations & Clients Across Australia
Defence, critical infrastructure, intelligence: high-risk environments need more than paper. We design, remediate, and deliver measurable security improvements without theatre. Our Canberra-based team delivers local support and national capability across cyber security, ICT engineering and operational technology.
Secure System Design & Remediation
We design, harden, and remediate ICT systems and cyber security environments in Canberra and nationwide. From architecture through to accreditation, our cleared consultants deliver practical fixes that lower risk in Defence, government, and critical infrastructure.
DISP & Essential Eight (ML2) as a Service
Outcome-led Essential Eight Maturity Level 2 for Defence SMEs.
Delivered as a managed service — not a one-off assessment.
We help Defence industry and regulated SMEs achieve and maintain Essential Eight ML2 without building enterprise security capability in-house. Our approach is transparent, Defence-aligned, audit-ready, and designed to scale for small teams.
Operational Technology & Critical Infrastructure Security
We help national infrastructure providers achieve SOCI Act compliance and strengthen their OT environments without disruption. Our team applies network segmentation, security uplift, and risk management across leading frameworks (Essential Eight, ISM, ISO, and NIST) to deliver actionable risk reduction balanced with operational needs.
GRC & Essential Eight Uplift
In 45 days we map your organisation’s real posture, then drive uplift across Essential Eight, PSPF, and ISM compliance. Our evidence-based approach combines cyber risk management, governance and audit-ready consulting, delivering measurable results and Authority to Operate (ATO).
Why Calexi: Cleared Cyber Security Specialists
Measurable Risk Reduction
Lowered Defence program risks from extreme to medium within six months through targeted cyber risk remediation.
Proven Compliance Uplift
Delivered a 30%+ Essential Eight compliance increase in under six months, securing Authority to Operate (ATO).
Ground Truth in 45 Days
Cleared consultants provide a full ICT security assessment and practical roadmap for remediation.
Featured Work: Measurable Risk Reduction & Compliance Uplift
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Ransomware Incident Response
When a ransomware attack exposed poor practices and failed backups, Calexi led the recovery, restored three months of data, implemented emergency fixes, and re-architected the…
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Cyber Security Tabletop Exercise for a Critical Infrastructure Water Operator
A transport critical infrastructure project was at risk due to cascading system failures caused by poor maintenance in a high-security environment. Calexi rapidly stabilised the…
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Building a Sovereign Cyber Training Capability for Defence
Defence faced mounting challenges in building a skilled cyber workforce, from costly overseas training to critical skills gaps. Calexi staff designed and delivered a sovereign…
Ready to Reduce Risk?
As trusted by Defence, Government and Critical Infrastructure providers.