Connected mines, real risk
Australia’s resources sector faces a cyber moment
Connected mine sites across Australia are increasingly exposed to cyber risk as operational technology, corporate IT and cloud platforms merge.
The national picture is stark. The Australian Cyber Security Centre reported a sharp rise in cyber activity in FY2024-25, including over 42,500 calls to the Cyber Hotline and more than 1,200 incidents responded to by the ACSC, signalling growing pressure on critical infrastructure owners.
Those two facts should be enough to wake boards and chief executives. Modern mines are no longer isolated industrial outposts; they are distributed, cloud-linked systems that, when compromised, can halt production, endanger workers and ripple through national supply chains.
Modernising the industry’s remote operations, automated fleets and real-time analytics have come with a simple trade off, a much larger attack surface and a growing list of entry points for adversaries.
The old playbook of perimeter firewalls and post-incident remediation is obsolete. Mining companies must move from reactive defence to continuous, operational resilience. That means boards should demand measurable metrics mean time to detect (MTTD) and mean time to recover (MTTR) reported alongside safety and production KPIs. It means investing in unified visibility across IT and OT so that an anomaly in a fleet management system is seen and acted on before it becomes a site-stopping incident.
Technology can help.
“Mining businesses are now recognising that cyber resilience is about continuous visibility and proactive threat management, not just defence,” says Denver Technology business development general manager Matthew Clayton.
“Using AI-enabled monitoring and automation, organisations can detect abnormal behaviour before it becomes a critical incident. This is a major shift from even five years ago.”
AI-assisted detection can shorten the window between detection and containment, but it is not a silver bullet. These tools require good data, rigorous governance and skilled teams to avoid false positives and new vulnerabilities.
A particular danger lies in the convergence of IT and OT.
“From payroll to truck fuelling, everything is connected,” says Denver Technology operations manager Brad Hardwicke.
“That means a vulnerability in one area can quickly impact the entire operation.
Securing OT environments is now critical to safety, operations, and business continuity.”
Many OT systems were never designed for hostile networks; they run legacy software, use bespoke protocols and are often patched infrequently because downtime is costly.
That combination creates opportunity to attackers.
Practical steps are straightforward and urgent. Start with the basics: network segmentation that separates corporate and operational systems; multi-factor authentication for remote access; disciplined patch management for both IT and OT assets; and supplier security clauses that make vendors accountable. Where in-house skills are limited, a managed security operations that understands mining-specific OT risks can provide near-real-time detection and response.
People and process matter as much as technology. Regular tabletop exercises that include contractors and suppliers expose gaps in incident response before a real event. Clear incident playbooks, board-level reporting, and training that treats cyber risk as an operational safety issue will reduce human error still the most common cause of breaches.
“Cloud is not just about moving infrastructure,”,” says Denver Technology chief executive Ben Mills.
“It requires a complete rethink of your security position and plan Organisations must ensure strong identity and access management, data encryption, and continuous monitoring. It is not a set-and-forget environment.”
Regulators and industry bodies are already tightening expectations for critical infrastructure. That should be a call to action, not a burden. Companies that treat cyber resilience as an enabler will be able to modernise using the newest tools the market has to offer with confidence. Enabling them to protect production and preserve investor trust.
Those that delay risk costly disruption and reputational damage.
The choice is clear. Secure the digital backbone now with measurable KPIs, unified IT/OT visibility, tested incident response and accountable suppliers or accept the growing probability of a disruptive, expensive incident. For an industry that prizes planning and risk management, treating cyber resilience as anything less than an operational imperative would be a strategic failure.
