Resources

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Articles

SensorFu secures €1.5M investment round to support continued growth in cybersecurity

SensorFu has completed an €1.5 million investment round, led by Nordic Option. The funding comes from both current shareholders and new investors, Gorilla Capital, Korpun Siemen and angel investors in the cybersecurity domain. The round is complemented by a public grant component.

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Meet the SensorFu team - Lauri

Welcome to the Sensorfu Spotlight! We’re pulling back the curtain to introduce the experts, innovators, and problem-solvers who drive our mission forward. This time, we’re featuring Lauri from our Customer Success team. Focused on the technical side of the house, Lauri ensures our clients get the most out of our tools by bridging the gap between complex systems and seamless operations. Today, he shares his experience to keep client networks resilient.

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Meet the SensorFu team - Mikko Kenttälä

Welcome to SensorFu’s Spotlight! Over the coming weeks, we’re pulling back the curtain to introduce you to the experts, innovators, and problem-solvers who make SensorFu what it is.

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Ghost Leak: Beacon is already dead, but keeps calling back to Home — March 15, 2026

From Assumed to Assured — SSAB Validates ICS Segmentation with Beacon — January 12, 2026

Rapid deployment of Beacons to 100 substations — September 17, 2025

Scanners Beware: Welcome to the Network from Hell — December 16, 2024

Escaping from isolated networks using Broadcast DNS — January 8, 2024

Bidirectional escape testing — October 12, 2023

Retired Device called Home — July 11, 2023

DNS in isolated networks, does it leak and how to mitigate when it does — January 4, 2023

Firewall bypass with CARP in OPNsense Packet Filter — March 28, 2022

Revisiting Isolated Networks in the Cloud — March 21, 2022

Lopsided routing, a stealthy hole punch into FortiGate — January 7, 2022

Escaping from a truly air gapped network via Apple AWDL — August 3, 2021

Whitepapers

New agile methods for improving cyber security in companies

It is important that companies identify the material that they need to protect to enable efficient protection. Complex isolated networks are not always as well isolated as you would think. The feasibility study (Toteutettavuustutkimus) conducted by the National Cyber Security Centre Finland (NCSC-FI) successfully tested and developed new, agile and scalable methods for improving these areas.

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Protecting water utility against nation state cyber adversary

Water supply professionals and government planners have long been aware that urban water systems are a lucrative target for cyber adversaries. Water utilities are heavily using industrial control system (ICS) networks to control the physical processes essential to water treatment and distribution systems. Network isolation and segmentation are key protections that prevent unauthorized access to these SCADA/ICS systems and to keep hostile adversaries at bay.

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Experiences with the Beacon deployments

We have delivered our SensorFu Beacons into a real production networks. To celebrate this milestone of real deployments, we are writing about the lessons learned and experiences gained while working with our early adopters.

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Documentation

Beacon User Manual →

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