Thales has successfully demonstrated a world-first capability that prepares 5G networks for the era of quantum computing. The test proved that SIM and eSIM cards can be remotely upgraded to support post-quantum cryptography, boosting security without disrupting services or user experience.
The breakthrough highlights the potential of crypto-agile networks to evolve securely as quantum threats emerge.
Replacing millions of devices is impractical, so Thales enables operators to deploy quantum-safe algorithms directly to existing devices. Remote upgrades preserve data and connectivity while instantly boosting security, keeping 5G networks resilient and trusted.
The demonstration reinforces Thales’ leadership in post-quantum cryptography, with dedicated research teams developing quantum-resistant methods and contributing to international standards, including NIST initiatives.
Operators can now protect long-term investments, secure critical services, and prepare for the next generation of quantum computing without operational disruptions.
Thales’ approach offers a practical roadmap for telecoms to adopt quantum-safe security today, ensuring continuity, trust, and resilience across mobile networks as digital threats evolve.
Originally written by: Digital Watch
Source: Digital Watch
Published on: 2 March 2026
Link to original article: Quantum-safe security upgrades SIM and eSIM cards
