Cybersecurity through Electromagnetic Shielding
Telecommunications Electronics Material Protected from Emanating Spurious Transmissions
TEMPEST technology is an information security discipline aimed at protecting equipment against electromagnetic espionage.
The risk:
Every electronic device unintentionally emits radiofrequency waves and conducted signals. A remote attacker can intercept these emissions to reconstruct critical data—such as screen displays, keystrokes, and network traffic—in real time.
The Solution:
“Hardening” (or TEMPEST hardening) involves shielding the chassis to create a Faraday cage, adding filters to communication ports and the power supply, and using low-emission components.
Equipment concerned:
This expertise applies to the entire sensitive digital ecosystem: workstations, servers, network switches, printers, and even cameras or loudspeakers.
Industrial Sovereignty: The Essonne facility
Until recently, France lacked an industrial player capable of locally manufacturing certified equipment. To address this gap, Logic Instrument, through its subsidiary Elexo, opened a TEMPEST production facility in Essonne.
Made in France:
The facility enables the direct design or hardening of commercial off-the-shelf (COTS) equipment on national soil, ensuring a complete chain of trust.
High-Security Infrastructure:
The site is a secure facility staffed by authorized personnel. It is equipped with a state-of-the-art semi-anechoic chamber for measuring residual electromagnetic leakage with extreme precision.
Qualified Expertise:
The teams are specifically trained by leading experts, and the plant operates in accordance with ISO 17025 certification.
Strategic Partnership and NATO Certifications
Elexo has structured its product offering through a licensing agreement with Eurotempest, a European leader in the field. This partnership enables the company to offer products that meet the most stringent standards set by NATO (SDIP-27 and SDIP-55) and the Council of the European Union.
The offering comes in three levels of protection tailored to the terrain’s risk level:
A Strategic Market Supported by the French State
This project aligns with a national drive for technological independence. It is supported by the DGA and BPI-Definvest, which have granted a strategic loan of €1 million for the installation of radio-frequency testing equipment.
Target Clients: In addition to the Ministry of the Armed Forces (notably via the MASTOC framework contract with DIRISI), Elexo serves intelligence agencies, critical infrastructure operators (OIVs), and major public institutions.
Group Synergies: This business activity makes the Logic Instrument Group a unique end-to-end integrator, capable of providing ruggedized hardware, test and measurement solutions (via Distrame), and high-level electromagnetic security.
