Conclusion: Ransomware is a widespread scourge in the local region and organisations must take steps to address this eminently foreseeable risk. User education is necessary, but it is not sufficient to address this risk – otherwise it would already have been dealt with. Organisations must review their information systems and become rigorous on technical hygiene strategies, such as patching. Using the revised Strategies to Mitigate Cyber Security Incidents from the Australian Signals Directorate (ASD) is an excellent starting point, as these are empirically validated. The critical action is to determine where these strategies are best applied, and this must be guided by the risk tolerance of the business.

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