Insider Threat at Ambulance Victoria

In this episode, we dive into a real-world case of insider threat in Australia’s health sector — the data breach at Ambulance Victoria in March 2025, where a former staff member exploited their final day of system access to steal the personal and financial data of up to 3,000 employees.But this is not an isolated incident.We also examine the NSW Ambulance contractor convicted of selling employee data, explore the broader cultural issues that can give rise to insider threat behaviour — including bullying, fraud, and leadership failure — and ask what lessons critical infrastructure organisations must learn to prevent future harm.Organisational culture and leadership play a pivotal role in either enabling or preventing insider threats. A toxic workplace can be both a driver of disgruntlement and a barrier to early detection.Through the lens of recent events and grounded in behavioural insight, this episode unpacks what an insider threat really looks like — and why the most effective response starts not with technology, but with people.🎧 Tune in as Pentagram Advisory offers practical, security-focused insights for boards, executives, and practitioners navigating today’s threat landscape.