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Critical Infrastructure Uplift

A transport-sector organisation faced compliance gaps and conflicting advice. Calexi identified redundant technology, leveraged existing licences, and implemented targeted improvements, saving hundreds of thousands while delivering major security and compliance uplifts — without disrupting critical operations.

Abstract cyber security illustration with a glowing shield overlaying a digital network grid, symbolising Defence cyber resilience and secure network remediation.

Defence Cyber Training Environment

Calexi led the rapid redesign and remediation of a critical Defence cyber training environment, reducing risk levels, lifting Essential Eight compliance by more than 30%, and enabling the successful completion of a multinational exercise. Our secure-by-design approach delivered measurable, sustainable improvements under tight time and compliance pressures.