Swiss firm SealsQ has started deploying its GSMA-accredited eUICC (Embedded Universal Integrated Circuit Card) with telecommunications operators worldwide.

The eUICC technology is now equipped to integrate post-quantum cryptographic security, marking a milestone in the evolution of secure mobile and IoT communications.

This innovation enables mobile phones, IoT devices and connected infrastructure to benefit from security that defends against current and future cyber threats, including those posed by quantum computing.

“By preparing post-quantum security for our GSMA-accredited eUICC technology, we’re enabling a new era of trusted, scalable and future-proof connectivity,” said Carlos Moreira, CEO of SealsQ. “This advancement meets today’s security needs and prepares for future quantum threats, ensuring our customers stay ahead of emerging cyber challenges.”

At the heart of SealsQ’s product is its GSMA Root CI-accredited Root Certificate Authority, hosted in Switzerland to ensure digital sovereignty through the nation’s legacy of trust, neutrality and stringent data privacy. This Swiss RoT ensures increased trust and interoperability across the global mobile ecosystem, supporting secure identification and authentication of eSIMs and subscription management entities within the GSMA remote provisioning framework. This paves the way for secure, remote and scalable connectivity for consumer, M2M and IoT devices.

As eSIM adoption surges, telcos are actively seeking to phase out physical SIM cards in favour of dynamic, remotely provisioned profiles. SealsQ’s eUICC technology simplifies this transition by providing a secure, post-quantum-ready platform that enhances operational efficiency and ensures long-term cryptographic resilience.

In smart city deployments, where millions of sensors collect data on traffic, environment and infrastructure, the post-quantum-ready eUICC ensures end-to-end trust, data integrity and resilience, even as cyber threats evolve. Municipalities and service providers can confidently roll out IoT services to improve efficiency, safety and urban sustainability. For industrial IoT applications, the technology offers secure, seamless connectivity for sensors, machinery and automated systems across sectors such as manufacturing, logistics and agriculture, safeguarding mission-critical data.

In an extension of its connectivity services, SealsQ has become an investor and shareholder in WiseSat (wisesat.space), a satellite company developing a constellation of low-orbit satellites for secure IoT connectivity. Through this partnership, SealsQ enables telcos to access the WiseSat satellite constellation, extending post-quantum-ready services from Earth to space, providing resilient, globally accessible infrastructure for mission-critical IoT, remote environments and underserved regions.

Mobile phones, reliant on traditional cryptographic algorithms such as RSA and ECC, are vulnerable to quantum computing-based attacks. SealsQ’s post-quantum-ready eUICC provides robust encryption that future-proofs mobile communications, financial transactions and authentication processes, protecting user privacy and device integrity at scale.

This deployment could mark a turning point for telcos seeking to enhance security, reduce complexity and enable new business models in the age of AI and quantum computing. With the eUICC, operators, enterprises and governments have a path to secure digital transformation across mobile, IoT and infrastructure domains.

For more information on post-quantum semiconductors and security, visit www.sealsq.com.