OT SECURITY MADE SIMPLE

Threat & Intrusion Detection Systems for Operational Technology and IIoT

Updates about your safety and our products

Current blog posts

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From the diary of a pentester

When the gates are open early – How to minimize OT cyber risks and harden your systems

What about undetected backdoors and blind spots in your industrial control systems? Learn how to make your OT infrastructure more secure by implementing initial hardening measures, using real-world examples from a penetration tester’s diary.

CRA Preparations in the Industry

The Cyber Resilience Act: A new digital security regulation for OT security

What is the aim of the Cyber Resilience Act and what does it mean for the development of OT Cybersecurity solutions and their users in the field.

Jérôme Arnaud

Guidelines from the UK Cyber Security Agency

How to document your OT without breaking down (part 1)

How can companies implement the NCSC guideline “Creating and maintaining a definitive view of your Operational Technology (OT) Architecture” without being overwhelmed. Time to prioritize.

Press reviews

Rhebo in the media

May 4, 2026

Expanding OT cybersecurity footprint across DACH industrial markets

Everfield has signed a definitive agreement to acquire Rhebo. The acquisition marks Everfield’s further investment in OT security and strengthens its presence in the DACH region.

Mar 2, 2026

Secure OT networks with risk and vulnerability assessment

The security of OT environments is a core element of cybersecurity in the Industrial IoT. A risk and vulnerability assessment, as offered by Rhebo, can be an effective first step.

Sep 19, 2025

How well do firewalls secure my OT networks?

When discussing industrial cybersecurity requirements, the term “intrusion detection system” is often mentioned. But what exactly does it entail? And what capabilities must it offer in industrial environments?

May 1, 2024

Cracking Down on Malicious and Anomalous Behaviour in OT Networks with Deep Traffic Visibility

In a recent interview, Ariana Lynn, Principal Analyst at The Fast Mode spoke to Dr. Frank Stummer, Co-Founder of Rhebo on the impact of traffic visibility on modern IP networks. Frank joins us in a series of discussions with leading networking, analytics and cybersecurity companies, assessing the need for traffic filtering technologies that can deliver real-time, granular application awareness.

Apr 10, 2022

Re-emergence of TRITON malware elevates threat levels at critical energy infrastructure installations

With the resurgence of the TRITON malware and as these threats reach the industrial control systems (ICS) and supply chain frameworks, there is once again an...

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