WISeKey’s Subsidiaries WISeSat and SEALSQ Launch New Satellite with SpaceX, Enabling the First-Ever DePIN from Space and Advancing Quantum-Safe Space Communications

_{Courtesy of SpaceX}

WISeKey’s Subsidiaries WISeSat and SEALSQ Launch New Satellite with SpaceX, Enabling the First-Ever DePIN from Space and Advancing Quantum-Safe Space Communications

SEALSQ and WISeSat are setting the foundation for a new generation of cyber-resilient, quantum-ready space systems, redefining global digital trust from orbit

Geneva, Switzerland, June 23, 2025 –WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, today announces that its subsidiary WISeSat.Space SA (“WISeSat”), has successfully launched its latest generation satellite WISeSat 3 aboard SpaceX’s Falcon 9 Transporter-14 mission, June 23 at 23:18 CEST from Vanderberg, California. This mission represents a breakthrough in space-based cybersecurity and decentralized infrastructure, marking the first satellite to embed Quantum RootKey from SEALSQ’s Corp. (Nasdaq: LAES) (“SEALSQ”), another subsidiary of WISeKey.

The new satellite includes cutting-edge technology enabling SEALCOIN token exchanges directly from space, in collaboration with Hedera. Of note, SEALCOIN AG, also a subsidiary of WISeKey, focuses on decentralized physical internet with DePIN technology and house the development of the SEALCOIN platform. This innovation establishes the world’s first Decentralized Physical Infrastructure Network (DePIN) launched from orbit, transforming the role of satellites in decentralized finance and secure digital identity.

Simultaneously, the mission is a pivotal step forward in securing space communications through the implementation of post-quantum cryptography (PQC). PQC is critical for protecting satellite communications against future threats posed by quantum computers, which are expected to render current encryption methods like RSA obsolete. Ensuring data integrity and confidentiality is essential in the space environment, and PQC delivers quantum-resistant algorithms that can be integrated into existing systems, allowing for a seamless transition and protection from both current and emerging risks.

This satellite architecture supports the integration of PQC within a hybrid framework that enables secure communication between orbital and ground-based infrastructure. By embedding PQC algorithms directly into satellite hardware, the cryptographic processing is isolated from critical systems, thus enhancing security and minimizing vulnerabilities. This approach also allows for secure key generation, distribution, and management, essential functions for trusted data exchange between satellites and Earth stations.