

ABOUT US
Scandinavian strength in security

Trusted specialists in OT cybersecurity.
The company has developed patented technology over more than 10 years to detect and prevent attacks on industrial control systems.
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With more than a decade of experience in operational technology, we know what it takes to protect complex industrial systems.
2014
Siv Hilde Houmb, the founder of Secure-NOK.

2017
Siv ended up as top three in the «Female Entrepreneur 2017» price. Norwegian price for top female technology entrepreneurs.

2017
Our representative from Secure-NOK was selected as a finalist in the Female Entrepreneur competition, recognising her leadership in developing cybersecurity solutions for critical infrastructure.

2018
IADC reward to Siv for exemplary services 2018” Siv receives “Exemplary Service Award”

2018
Technology Conference in Houston 2018.

2018
“OTC 2018” Annual Offshore Technology Conference in Houston 2018.

2020
Representing our company in a discussion on the importance of OT security at the Lerchendal Conference, Trondheim (2020).

2023
Awarded for 2022, but received prize in Jan 2023. "Tekna Stavanger names Secure-NOK the most innovative company in South Rogaland.

2024
With great enthusiasm, we joined Jobba24 in Sandnes to support and strengthen the local market.

2025
Tor Ommund Ljosland joins as Chief Sales Officer, bringing a fresh perspective and a new sales strategy.

2025
Securenok raises NOK 37.5M in first round, targeting NOK 50M total to meet growing OT security demand, with NOK 25M from Knut Molaug (Kkera Invest AS).

2025
In collaboration with Netsecurity, we delivered a comprehensive OT SOC service for one of the country’s leading providers of critical services.

2025
New collaboration. Our journey continues with a new partner in Denmark.

2026
Where strategy meets visual identity, shaping the future of our brand. See more. Fear less.

2014
Siv Hilde Houmb, the founder of Secure-NOK.

2017
Siv ended up as top three in the «Female Entrepreneur 2017» price. Norwegian price for top female technology entrepreneurs.

2017
Our representative from Secure-NOK was selected as a finalist in the Female Entrepreneur competition, recognising her leadership in developing cybersecurity solutions for critical infrastructure.

2018
IADC reward to Siv for exemplary services 2018” Siv receives “Exemplary Service Award”

2018
Technology Conference in Houston 2018.

2018
“OTC 2018” Annual Offshore Technology Conference in Houston 2018.

2020
Representing our company in a discussion on the importance of OT security at the Lerchendal Conference, Trondheim (2020).

2023
Awarded for 2022, but received prize in Jan 2023. "Tekna Stavanger names Secure-NOK the most innovative company in South Rogaland.

2024
With great enthusiasm, we joined Jobba24 in Sandnes to support and strengthen the local market.

2025
Tor Ommund Ljosland joins as Chief Sales Officer, bringing a fresh perspective and a new sales strategy.

2025
Securenok raises NOK 37.5M in first round, targeting NOK 50M total to meet growing OT security demand, with NOK 25M from Knut Molaug (Kkera Invest AS).

2025
In collaboration with Netsecurity, we delivered a comprehensive OT SOC service for one of the country’s leading providers of critical services.

2025
New collaboration. Our journey continues with a new partner in Denmark.

2026
Where strategy meets visual identity, shaping the future of our brand. See more. Fear less.

2014
Siv Hilde Houmb, the founder of Secure-NOK.

2017
Siv ended up as top three in the «Female Entrepreneur 2017» price. Norwegian price for top female technology entrepreneurs.

2017
Our representative from Secure-NOK was selected as a finalist in the Female Entrepreneur competition, recognising her leadership in developing cybersecurity solutions for critical infrastructure.

2018
IADC reward to Siv for exemplary services 2018” Siv receives “Exemplary Service Award”

2018
Technology Conference in Houston 2018.

2018
“OTC 2018” Annual Offshore Technology Conference in Houston 2018.

2020
Representing our company in a discussion on the importance of OT security at the Lerchendal Conference, Trondheim (2020).

2023
Awarded for 2022, but received prize in Jan 2023. "Tekna Stavanger names Secure-NOK the most innovative company in South Rogaland.

2024
With great enthusiasm, we joined Jobba24 in Sandnes to support and strengthen the local market.

2025
Tor Ommund Ljosland joins as Chief Sales Officer, bringing a fresh perspective and a new sales strategy.

2025
Securenok raises NOK 37.5M in first round, targeting NOK 50M total to meet growing OT security demand, with NOK 25M from Knut Molaug (Kkera Invest AS).

2025
In collaboration with Netsecurity, we delivered a comprehensive OT SOC service for one of the country’s leading providers of critical services.

2025
New collaboration. Our journey continues with a new partner in Denmark.

2026
Where strategy meets visual identity, shaping the future of our brand. See more. Fear less.


Secure-NOK is a Norwegian company specializing in OT security for critical infrastructure. Since 2010, we have protected the world’s most demanding industrial environments, delivering solutions that combinecomplete visibility across networks, endpoints, and PLCswith advanced anomaly detection.
Our technology is designed to meet the complex challenges of industrial systems, where reliability and safety are paramount. By bridging expertise acrossOT, IT, and IoT, we help organizations worldwide maintain control over their most vital assets and automation processes.
Our European-basedSecure-NOK Security Centerprovides professional services powered by data intelligence and threat analytics, enabling fast and effective responses to cyber threats.
In a world where every second counts, we deliverreal-time asset visibility, robust threat detection, and actionable intelligence— protecting what matters most.

Shaping the future of OT cybersecurity — together.




































Insights from Norway’s Cybersecurity Experts

Bremanger Breach: Lessons from a Norwegian Dam Hack
Earlier this year, unidentified hackers breached the control system of a Norwegian dam at Risevatnet, in Bremanger. The hackers discovered that the dam had a Human Machine Interface (HMI) exposed on the Internet and was able to gain access by exploiting a weak password.p
Digitalization: Opportunities and New Risks
Digitalization offers enormous opportunities for efficiency, but it also introduces new risks. When OT systems (Operational Technology) are connected to the internet, vulnerability to attacks increases—attacks that threaten not only data, but also lives, health, and critical societal functions.

Stricter Security Requirements for Critical Services from 1 October 2025 under theDigital Security Act
O nFriday, 20 June, the Norwegian government decided in a Council of State meeting that the Digital Security Act will enter into force on 1 October 2025. At the same time, the Digital Security Regulation was adopted, entering into force concurrently with the Act.
”We combine deep expertise with integrity and responsibility, moving with agility and enthusiasm to protect what matters most and lead the future of OT cybersecurity.”
Tonje Rønneberg Skei
Chief Executive Officer

Understanding SNOK® — common questions
Operational Technology (OT) security is a specialized field focused on protecting industrial automation and control systems (IACS) from cyber threats. It covers technologies that control critical infrastructure such as power grids, water treatment systems, and production lines inmanufacturing facilities.
We offer the SNOK® platform, a cybersecurity monitoring system designed to detect early signs of intrusions. The solution consists of a unique combination of network sensors (NIDS), endpoint sensors, and PLC sensors, which together provide full visibility into the operational environment.
The risk has increased due to ongoing digitalization and the Industry 4.0 trend, which connects previously isolated production systems with IT networks. Cyberattacks have become a real threat to production continuity, employee safety, and the stability of public services.
IT security focuses primarily on protecting data, while OT security prioritizes the continuity of industrial processes and operational stability. OT systems often rely on legacy devices that do not support traditional security tools such as antivirus software or frequent updates to patch security holes.




