What is OT Security?
OT Security (Operational Technology Security) refers to the protection of all systems that control and monitor physical processes — from machines and plants in manufacturing to critical infrastructures like energy, water, or transportation.
While traditional IT security primarily protects data, the focus in OT is on the availability and security of physical processes is paramount. Downtime not only costs money but can also endanger people and the environment.
OT Security encompasses measures such as asset management, vulnerability and patch management, network segmentation, intrusion detection, as well as backup & recovery — tailored to the specific requirements of industrial environments.

— The 4 protection goals of OT Security —
Why OT Security is indispensable today
Production networks have grown over decades and are increasingly interconnected with office IT, cloud services, and suppliers. This also expands the attack surface. Incidents like ransomware attacks on manufacturing plants show: whoever fails to secure OT risks days or weeks of downtime.
In addition, there are regulatory requirements. The NIS2 Directive obliges many companies to systematically secure their OT infrastructure and report incidents.
How ACURITY implements OT Security
With our Managed OT Security Services we take on the continuous protection of your production — structured into five building blocks: Asset Management, Patch Management, Backup & Recovery, Vulnerability Management and Network Intrusion Detection.
— Dive deeper into the topic —
Managed OT Security
Continuous protection of your production — collaborative, proactive, sustainable.
View Managed OT SecurityThe 5 pillars of OT Security
An overview of Asset Management, Patching, Backup, Vulnerability Management & NIDS.
View The 5 pillars of OT SecurityOT vs. IT Security
What fundamentally distinguishes OT Security from traditional IT Security.
View OT vs. IT SecurityNIS2 Directive
What NIS2 means in practice for operators of critical and important facilities.
View NIS2 DirectiveOT Security by Industry
Industry-specific requirements for automotive, energy, food & medical technology.
View OT Security by IndustryIoT Security in Production
Secure operation of connected sensors and IIoT devices.
View IoT Security in Production