Why is asset discovery harder in OT than IT?

OT environments use proprietary protocols (like Modbus/SCADA) and legacy hardware that traditional IT scanners can't always see or safely interact with without causing operational downtime.

How does the SOCI Act impact OT security?

The Australian SOCI Act requires critical infrastructure providers to identify and manage risks to their assets, mandating better visibility and reporting to ensure national security resilience.

OT Asset Visibility: The First Line of Cyber Defence

In the world of critical infrastructure, what you don’t know can hurt you. In 2023, over 75% of cyber incidents targeting industrial environments were traced back to unknown or unmanaged devices. Achieving total OT Asset Visibility is no longer just a “best practice”—it is a security imperative for 2026.

The Hidden Risk in OT Environments

Unlike traditional IT networks, Operational Technology often relies on legacy systems, proprietary protocols, and the dangerous assumption of “air-gapping.” When IT and OT converge, these blind spots become entry points for ransomware. Without OT Asset Visibility, a single vulnerable PLC can lead to catastrophic production halts and multi-million dollar losses.

Key Challenges in Asset Management

Legacy Hurdles: Many industrial devices run on unsupported firmware or ancient operating systems like Windows XP.
Siloed Systems: Traditional IT security tools often fail to “speak” OT protocols like Modbus or SCADA.
Regulatory Pressure: The Australian SOCI Act now mandates robust security postures, including real-time risk assessments.

3 Steps to Comprehensive OT Visibility

A resilient OT ecosystem starts with continuous, automated discovery:

1. Real-Time Discovery: Implement automated tools to identify every device and communication pathway in the network.
2. Risk Profiling: Maintain a current Critical Infrastructure Risk Management Plan (CIRMP) that evolves with the threat landscape.
3. Compensating Controls: Use Network Segmentation and Virtual Patching to protect high-risk legacy assets that cannot be easily updated.

Beyond Security: Meeting SOCI Mandates

Compliance is a major driver for OT Asset Visibility. Australian energy, healthcare, and transport providers face significant penalties for failing to report asset-level risks. Continuous monitoring ensures your organisation remains compliant with SOCI, NIST, and ISO/IEC 62443 frameworks while building long-term operational resilience.

From Reactive to Proactive

Asset discovery isn’t a one-time project; it’s an ongoing strategy. By understanding your environment before an attacker does, you transition from reactive firefighting to a proactive security posture that protects both your data and your physical operations.

“Visibility is the foundation of trust in a converged IT/OT world.”

Orro specialises in helping critical infrastructure providers close their visibility gaps. Contact us for an OT Security Assessment today.