CYSEC is the official
organiser of CYSAT.
CYSEC is the company behind CYSAT. Founded in 2018, they build sovereign cybersecurity products protecting satellites, ground segments and critical compute, from orbit to cloud.
Sovereign security,
from Earth to Orbit.
CYSEC was founded in 2018 with a singular conviction: that critical infrastructure, whether on earth or in orbit, deserves security that is sovereign, verifiable and hardware based. We build the technology that lets governments, defense organizations and enterprises operate with confidence in any environment.
"CYber SECurity for every data state, everywhere: on earth and in space."
From Luxembourg, Toulouse and Lausanne, CYSEC delivers ARCA: a unique bridge between confidential computing and space grade security. We specialize in TMTC protection, Satcom acceleration and resilience. Since 2025, CYSEC is fully eligible for sovereign EU programs, including IRIS² and Galileo.
To secure global terrestrial and non terrestrial connectivity with solutions that are standards compliant, seamlessly integrated and sovereignty driven, removing complexity and eliminating reliance on untrusted third parties.
To be the European reference for digital and space sovereignty, building the trusted backbone of secure global connectivity from Earth to Orbit.
Three products.
One threat model.
A coherent stack covering the satellite link, the ground segment and the confidential compute layer.
The first commercial implementation of the CCSDS Space Data Link Security protocol. Protects telemetry and telecommand between ground and satellite with encryption, authentication and key management. Validated in orbit on ESA OPS-SAT.
Secure satellite communications stack for ground segment and on board deployments. Bridges legacy satellite infrastructure with cloud native architectures. Developed under ESA ARTES 4S and qualified with HELLAS-SAT and Armada.
Hardened Linux based operating system for confidential virtual machines. Data and code stay encrypted even during computation, on premises, in hyperscalers or at the edge. AMD SEV-SNP and Intel TDX support.
The Management Team
Behind CYSEC
The CYSEC leadership team combines deep technical expertise with proven entrepreneurial track records, including veterans of MIT, EPFL, ISAE-Supaéro, STMicroelectronics, IMD and NUS.