Critical Security Insights: Protecting Small Assets with Big Consequences

In August 2025, Latvia's State Security Service reported that two individuals set fire to a train and railway relay cabinets controlling train movements. The attack was filmed and the footage was subsequently used for propaganda purposes. The matter was publicly reported in March 2026.

The sabotage of relay cabinets, small trackside assets that control train movements across a wide geographic area, illustrates a consistent vulnerability in multi-site and distributed infrastructure operations.

Small assets with large consequences are often the least protected.

Switch rooms, comms cabinets, pump controls, gate controllers, and UPS rooms are frequently overlooked in security planning because they appear minor in isolation. Their consequence, however, can be significant and disproportionate to their size.

A minimum baseline for these assets is straightforward: adequate lighting, camera coverage, tamper detection, and a defined response ownership. These are not high-cost interventions.

For organisations operating across multiple sites, the practical approach is consequence-based prioritisation. Not every cabinet warrants the same investment, but every cabinet with material operational impact warrants a deliberate decision about its protection level.

The filming of the attack also raises a separate consideration. Evidence preservation, communications management, and rapid service restoration should be planned, not improvised, after an incident of this nature.

If your asset register does not include an assessment of which small, distributed assets carry disproportionate operational consequence, that is a gap worth addressing.

Protective Security Advisory provides independent security risk assessments and critical infrastructure protection reviews for government and commercial clients across Australia.

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