ITS blog: News in the field of post-quantum cryptography – November 2025

Join us as we take a look at what November 2025 brought to the world of quantum technologies and PQC. This month was packed not only with technological breakthroughs in hardware, but also with significant steps in the field of legislation and national strategies.

The European supercomputer JUPITER and a 50-qubit simulation

November brought a fascinating demonstration of the power of classical supercomputing in the service of quantum development. Researchers fromthe Jülich Supercomputing Centre, in collaboration withNVIDIA, announced that they had successfully simulated a universal 50-qubit quantum computer on Europe's first exascale supercomputer, JUPITER .

Thanks to the use of NVIDIA GH200 chips and a new memory architecture, it is now possible to emulate quantum systems with a level of accuracy that no real quantum processor has yet been able to fully guarantee. For PQC algorithm developers, this means an unprecedented opportunity to test resilience in a simulated environment even before the arrival of fully error-free quantum hardware.

A breakthrough in stability: Princeton and "long-lived" qubits

Important news also came from Princeton University laboratories. Scientists have succeeded in developing a new type of superconducting qubit based on tantalum and silicon, which hasa lifetime exceeding 1 millisecond. This is three times longer than current state-of-the-art designs and almost fifteen times longer than the standard for commercial processors.

This discovery is key toerror correction, which is essential for breaking current cryptography. The compatibility of this design with existing architectures (such as those used by Google and IBM) suggests that "Q-day" may be getting closer.

Middle East and Asia: First industrial quantum computer and new regulations

In November,Aramco, in collaboration withPasqal, launched the first quantum computer in Saudi Arabia. The 200-qubit system (based on neutral atoms) is designed for industrial applications in the energy sector, confirming the trend of moving from theory to practice.

The United Arab Emirates and Singapore are also active on the legislative front. At the end of the month, the UAE approveda newnational encryption policy that introduces a phased transition to post-quantum cryptography in the government sector. At the same time, Singapore released a set of tools for "Quantum Readiness" to help companies audit their cryptographic assets—a step we have long recommended to our clients.

United Kingdom: Transition plan update

On November 27, the UK Department for Science, Innovation and Technology (DSIT) publishedPerspectives on the plan for PQC transition, a report emphasizing that NIST standards are already in place and organizations must not delay.

The emphasis is oncrypto-agilityand asset inventory. The report warns against the risk of attacks such as harvest now, decrypt later attacks and confirms that the migration of critical infrastructure is a long-term process that must begin immediately.

Conclusion

November 2025 clearly showed that the gap is widening—on the one hand, we see accelerating hardware development (Jülich, Princeton, Pasqal), and on the other, growing pressure from governments (UK, UAE, Singapore) for immediate preparation. Hybrid architecturesandthorough cryptography audits remain the best recommendation for today.

We look forward to more news in December with regard to upcoming conferences such as Quantum Day 2025 and further announcements from the EU. We will keep you informed.