Exein: The Silent Shield Powering the Future of Digital Life

And from industrial machines to medical devices, the vulnerabilities of connected devices can quickly become our real-world crises. 

The founders of Exein knew from the outset that the cybersecurity approach they were kicking against was formalised in ‘castle and moat’ models that aimed to protect the perimeter. 

The devices themselves had to develop into smart defenders.

Exein was built on this principle by Gianni Cuozzo, Rome 2018. The company imagined an embedded layer of protection within devices that would act like a digital immune system — dynamic, adaptive and constantly changing. Their assignment was explicit: to protect the billions of connected devices that right now constitute elements of modern life and in the process, protect societies as a whole.

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Meet Exein: The Immune System for Connected Devices

Exein’s approach sets a new definition of device security in the Internet of Things. Rather than adding shields around systems, Exein takes security inside the devices. Its technology works in real time, continually monitoring, learning and making decisions — like a biological immune system that recognizes and neutralizes threats before they can proliferate.

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At the core of this is Exein Runtime, a real-time engine that protects devices during operation, and Exein Analyzer, a diagnostics tool which is able to detect issues even before a product is deployed. Together, these give manufacturers and businesses assurance that their devices not only meet today’s standards, but are prepared to defend against tomorrow’s attacks.

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From Research to Real-World Breakthroughs

The company’s progress from idea to worldwide giant has been sprinkled with ambitious milestones. Exein raised a 70 million euros ($78.8 million) Series C led by Balderton in July 2025, joined by Supernova, Lakestar, 33N, United Ventures and Partech. 

This investment not only emphasized how pressing the issue of securing IoT ecosystems is, but also that investors have a great belief in Exein’s mission.

Today, Exein defends more than a billion devices every day, from industries such as healthcare, energy, robotics and manufacturing. 

The business has also prepared its product for regulation with the EU Cyber Resilience Act, the Radio Equipment Directive, and the US Cyber Trust Mark. This forward thinking made Exein the trusted partner for enterprises and governments in highly challenging compliance environments.

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One of the defining moments in Exein’s history occurred at the beginning of 2025 when it had a relationship with MediaTek. Via this partnership, Exein security will be built into the Genio platform, enabling its security on billions of connected devices serially manufactured in smartphone, automotive, home and healthcare industries. A lofty-crafted vision of “immunity” for digital life has up-scaled into a global reality.

Breaking Through the Trust Barrier

Building trust in cybersecurity is incredibly hard, particularly in sectors where huge amounts of sensitive information is at risk, and in industries on which the average person relies. Exein’s innovation was demonstrating that embedded shields can be both trustworthy and vanishing — able to bolster defense without penalizing performance.

By rethinking security of devices, Exein showed that security could keep pace with innovation, not follow it. This transformation from skepticism to confidence caused the organizations to perceive the embedded defense not as an add-on, but as a need to have in terms of digital resilience. 

From Rome to the World Stage

Exein’s fast ascent is a tale just as much of vision as of execution. The company counts some of the largest financial services, healthcare, manufacturing and power companies in North America, Europe and Asia as customers and with a footprint already extending beyond Europe into the U.S. and Asia, the company is a linchpin in the developing security ecosystem here in the States and abroad. Its 450% year-on-year growth and recognition in Sifted’s Southern Europe 100 list underscore both that momentum and its potential.

The ambition is not small for Exein. The company is working to establish an interconnected standard for digital immunity, so that any connected thing — a home thing, a factory thing, a hospital thing — can fend for itself. 

The Legacy They’re Building

Exein is something beyond securing the devices, it’s about a new definition for the security of the digital life. Not by technical specifications, but whether societies and the services they provide remain resilient — a hospital system that stays running during an attack, a factory that doesn’t shut down, a family that was safe because their house wasn’t compromised by a connected home intrusion.

Some years down the line, no one may remember that the tool was called Exein Runtime or Analyzer. What they will recall is how Exein made the invisible perils of the digital age less frightening, and how it enabled innovation to thrive without fear.

By baking-in security, Exein is not chasing after threats today but redefining the trust of tomorrow.