OT Security
OT Security, or Operational Technology Security, refers to the practices and measures implemented to safeguard the operational technology systems. This encompasses hardware and software used to monitor and control physical processes, particularly in context with critical infrastructure and similar deployments across manufacturing, transportation, defence, and energy production.
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ContributorAustralia's Critical Infrastructure Rules Just Grew Teeth
The SOCI amendments push OT security from best-effort to board-level obligation. Operators are still catching up.
27 May 2026 · 6 min read - Contributor
The SBOM Mandate Reaches the Plant Floor
Software bills of materials were an IT idea. Now regulators want them for the controllers running the grid.
26 May 2026 · 5 min read -
Interview · Series 041Inside a Water Utility's First Tabletop Exercise
What a regional water authority learned when it finally war-gamed an attack on its treatment systems.
25 May 2026 · 26 min watch -
Interview · Series 042The Engineer's Case Against the Air Gap
A veteran control-systems engineer on why "just air-gap it" is a comforting myth, and what actually keeps a plant safe.
24 May 2026 · 19 min watch -
Press Release · ClarotyClaroty Extends xDome to Building Management Systems
The OT-security vendor brings asset discovery and risk scoring to HVAC, lifts, and access control.
23 May 2026 · 3 min read -
Podcast · KBKast Ep. 369When the Factory Floor Becomes the Attack Surface
IT/OT convergence has erased the old perimeter. We unpack what defenders still get wrong about the plant.
22 May 2026 · 41 min watch -
ContributorThe Purdue Model Is Dead. Long Live the Purdue Model.
Cloud-connected plants broke the tidy layers of the reference architecture. It still beats the alternatives.
21 May 2026 · 6 min read -
Podcast · KBKast Ep. 365The Substation That Phoned Home
A maintenance laptop, a forgotten modem, and the quiet anatomy of a near-miss on the grid.
20 May 2026 · 38 min watch -
ContributorLegacy PLCs and the Twenty-Year Patch Gap
Half the controllers in heavy industry predate the threats now hunting them. Ripping them out is not an option.
18 May 2026 · 5 min read -
Interview · Series 040A CISO's View From the Floor of Heavy Industry
Budgets, blame, and the long argument for treating safety and security as the same job.
16 May 2026 · 21 min watch - Contributor
Why Your IT Security Playbook Fails on the Plant Floor
Patch Tuesday doesn't exist when downtime costs millions an hour. OT security needs its own rulebook.
15 May 2026 · 5 min read - Contributor
Why Safety Instrumented Systems Are the Real Crown Jewels
When the last line of defence between a process and a disaster is networked, the threat model changes.
13 May 2026 · 6 min read -
Press Release · DragosDragos Reports Surge in Ransomware Against Manufacturing
The ICS-security firm logs a record quarter of incidents targeting production environments.
12 May 2026 · 4 min read - Contributor
Ransomware's Quiet Pivot to Operational Technology
Crews worked out that a halted production line pays faster than encrypted email. The telemetry backs them up.
10 May 2026 · 7 min read - Contributor
Remote Access Was Always the Soft Underbelly
Every vendor VPN and jump box is a door. The pandemic propped most of them open and nobody closed them.
08 May 2026 · 5 min read -
Podcast · KBKast Ep. 363When the IT and OT Teams Finally Talk
Two tribes, one plant. A conversation about the cultural gap that breaks more security programmes than any exploit.
06 May 2026 · 44 min watch - Contributor
The Case for OT-Specific Threat Intelligence
Generic IOCs miss the adversaries who actually study turbines and PLCs. Defenders need feeds that speak the language.
02 May 2026 · 5 min read - Press Release · Nozomi Networks
Nozomi Networks Labs Finds Healthcare the Most-Targeted Industry in Australia
New telemetry from the vendor's threat-research arm points to a sharp rise in attacks on connected medical and building systems.
30 Apr 2026 · 4 min read