We cracked Stuxnet. Now we help companies to build a secure Industrial Internet of Things.

We have been among the first to develop the field of ICS security. We have cracked the Stuxnet malware. We have helped asset owners in critical infrastructure and manufacturing to protect against nation-state level cyber attacks.

Our game-changing OT asset management software helps companies to build secure and reliable OT infrastructures in times of shrinking head counts.

A journey from software to consulting to software

Langner started out as a software company developing PC driver software to connect to industrial automation devices. In the Nineties, when networks became a thing and industrial control systems became networked at a large scale, we were among the first to point out the cyber security risk.

OT security consulting then became our main focus for over twenty years. Our analysis of the Stuxnet malware has triggered global changes in policy and defense. Among others, we were asked for advice by the White House, the Pentagon, the US Senate, and the United Nations.

In our consulting practice we noticed that every single client, no matter how big or small, no matter which industry, lacked an asset inventory which could act as the factual basis for a solid cyber risk assessment.

We finally picked up the challenge to develop OT asset management software that not just revolutionizes OT security, but also gives engineering and maintenance an unprecedented level of visibility of their networks. Today, the OT-BASE OT Asset Management software is our sole focus.

Ralph Langner

The company

Consider Langner an international software startup with 30 years of experience. We morphed from a leading OT security consultancy to a software vendor and are based in the US and in Germany.

Langner is independent and small. We don’t depend on external capital and crazy growth expectations. We don’t maintain an expensive workforce of traveling sales people and solution architects. We focus on product development with a small, dedicated team of world class experts that have worked together for more than ten years.

We pick customers who share our vision that building a secure and safe Industrial Internet of Things requires innovative software tools — tools that we build with the strong feedback of our customers, some of which are global leaders in their industries. If you share this vision, we’d like to hear from you.

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Ralph Langner founded the German branch of the Langner group in 1988, and the US-based Langner Inc. in 2017. Ralph accumulated 25 years of hands-on field experience in the cyber security issues of power plants, water treatment facilities, nuclear facilities, food and beverage plants, automotive factories, steel mills, and many more.

He received worldwide recognition for his swift and comprehensive analysis of the Stuxnet malware and is considered a leading global expert on cyber defense.


“Ralph Langner is the global authority on cyber-physical attacks.”
Richard Danzig

Former Secretary of the US Navy, Member of the US Defense Policy Board

“The Langner Group has assembled the world’s top experts in cyber-physical security.”
Richard Clarke

Former Special Advisor to the US President on Cyber Security, former Chief Counter-Terrorism Adviser on the National Security Council

“Ralph Langner knows cyber-physical security and its policy implications like nobody else.”
Stewart Baker

Former General Counsel of the National Security Agency, Steptoe & Johnson

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