Thales Pioneers Remote Post-Quantum Security Enhancement for 5G Networks
Thales has made a significant breakthrough in technology, demonstrating the remote deployment of post-quantum cryptography on SIM and eSIM cards. This addresses a critical security challenge as quantum computing threatens to undermine current encryption methods.
The demonstration, announced on March 2, 2026, illustrates that 5G network security can be upgraded without the need to replace devices or cause service interruptions. The approach employs “crypto agility”, enabling telecom operators to enhance encryption over the air as standards and threats evolve.
Quantum computing presents a substantial threat to the encryption methods currently used in mobile communications. This could potentially jeopardize personal data, critical infrastructure, and national security. For telecom operators managing millions of connected devices—from smartphones and connected vehicles to emergency services and industrial systems—the task of upgrading security on a large scale has been formidable.
“This successful test shows that quantum-safe security is no longer a future concept, it’s something networks can start preparing for today,” said Eva Rudin, VP Mobile Connectivity solutions at Thales. “By enabling remote upgrades, we help operators protect their customers and critical services without disruption.”
The demonstration is built upon Thales’ post-quantum research and contributions to standardization efforts, including those led by the U.S. National Institute of Standards and Technology (NIST). Thales has its own quantum-resistant methods submitted to international standardization efforts.
The technology eliminates the impractical and unsustainable approach of replacing millions of devices every time security standards evolve. It offers a scalable solution for the quantum computing era.
Source: https://thequantuminsider.com/2026/03/02/thales-remote-post-quantum-5g-sim-upgrade/