SEALSQ Quantum & WISeSat launch Secure Satellite With PQC
SEALSQ Quantum
Popular semiconductor andpost-quantum cryptography (PQC) business SEALSQ Corp. SEALSQ, a branch of WISeKey International Holding Ltd., develops and markets Post-Quantum hardware, software, semiconductors, and PKI. New quantum-resistant semiconductors and cryptography are the company's main goals. These solutions are designed to address the pressing security challenges caused by quantum computing's rapid development.
Quantum Threat and SEALSQ Response
While RSA and ECC provide digital security, powerful quantum computers are becoming more capable of exploiting them. Quantum computers' ability to tackle difficult mathematical problems threatens data integrity and privacy worldwide, challenging these well-established encryption methods.
In response to this imminent quantum threat, SEALSQ is driving the development of Post-Quantum Semiconductors that protect private data for years. SEALSQ directly integrates post-quantum cryptography methods onto satellite technology. This innovative method separates cryptographic activities from critical systems, boosting security and lowering vulnerabilities.
Satellite-ground station data transfer requires secure key creation, distribution, and administration, which this design simplifies. The cryptographic algorithms tested on these satellites meet the newest US National Institute of criteria and Technology (NIST) criteria for global interoperability and compliance with new security legislation.
SEALSQ's quantum-resistant solutions target several critical sectors and applications, including:
Multi-factor authentication tokens.
Intelligent energy systems.
Healthcare and medicine systems.
Defence.
IT network infrastructure.
Cars.
Industrial Automation and Control.
SEALSQ's semiconductor products use Post-Quantum Cryptography to secure important systems and boost resilience across industries against quantum attacks.
Satellite Launch Updates and Innovations
SpaceX and WISeSat AG partnerships make SEALSQ a quantum-resilient space security leader. In 2025, several projects accomplished milestones:
SEALSQ Corp, SpaceX, and WISeSat AG launched the first of six 2025 next-generation satellites on January 14, 2025. The Vandenberg Space Force Base in California launched this. These satellites provide scalable and secure machine-to-machine (M2M) connectivity with advanced post-quantum encryption and secure communication technologies. This project employs Satellite-as-a-Service to provide Internet of Things solutions for critical infrastructure, logistics, and precision agriculture without large infrastructure investments.
From Vandenberg, California, SpaceX's Falcon 9 Transporter-14 launched WISeSat 3, the latest satellite, on June 23, 2025. The newest rollout was crucial. Decentralised infrastructure and space-based cybersecurity have improved due to this effort. The first satellite with SEALSQ's Quantum RootKey was WISeSat 3.
DePIN from Orbit
In addition to secure communications, WISeSat 3 launches the first Decentralised Physical Infrastructure Network (DePIN) from orbit. This technology could change satellites' role in safe digital identity and decentralised finance. Modern technology developed with Hedera is integrated into the new satellite to enable SEALCOIN token exchanges from orbit. SEALCOIN AG, a WISeKey company, develops the decentralised physical internet using DePIN technology.
According to Carlos Moreira, founder and CEO of WISeKey (and SEALSQ), this launch is a significant step towards making space communications quantum-resilient and a milestone for decentralised infrastructure in space. PQC and blockchain-based tokenisation from orbit are altering space technology, cybersecurity, and finance. WISeKey Board Director David Fergusson said WISeSat's breakthrough PQC innovation set a bar for reliable data transport and communication.
Strategic Impact and Future Outlook
These satellite launches provide sovereign, secure, and scalable satellite services for digital identity, IoT, and reliable data transmission as part of the developing WISeSat constellation. This concerted endeavour is essential to Europe's space and cybersecurity capabilities, technical independence, and quantum computing leadership. SEALSQ and its partners are using PQC and DePIN from space to establish a quantum-resistant security infrastructure in orbit. Decentralised apps that can run from space will benefit from secure data transport.
