Quantum Readiness – 16 Questions CIOs and CISOs Should Be Asking Today (english)

An executive interview on business risks, crypto discovery and the path towards quantum readiness.

16 questions · Executive guide · Reading time approx. 15 minutes

Quantum computing is advancing rapidly. While practical, large-scale use may still be some years away, new risks are already emerging for organisations today. At the same time, many organisations face the challenge of assessing realistically what quantum computing could mean for their IT landscape.

This interview addresses the key questions around quantum readiness, post-quantum cryptography and quantum risk assessments. It is intended for CIOs, CISOs, enterprise architects and decision-makers who want to understand which risks already exist today and how a structured preparation can be established.

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Quantum Readiness – 16 Fragen, die sich CIOs und CISOs heute stellen sollten (deutsch)

Ein Executive Interview über Business-Risiken, Crypto Discovery und den Weg zur Quantum Readiness.

16 Fragen · Executive Guide · Lesezeit ca. 15 Minuten

Quantencomputer entwickeln sich rasant. Während ihr praktischer Einsatz noch einige Jahre entfernt sein kann, entstehen bereits heute neue Risiken für Unternehmen. Gleichzeitig stehen viele Organisationen vor der Herausforderung, die Auswirkungen auf ihre IT-Landschaft realistisch einzuordnen.

Dieses Interview beantwortet die wichtigsten Fragen rund um Quantum Readiness, Post-Quantum Cryptography und Quantum Risk Assessments. Es richtet sich an CIOs, CISOs, Enterprise Architects und Entscheider, die verstehen möchten, welche Risiken heute bereits bestehen und wie sich eine strukturierte Vorbereitung aufbauen lässt.

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Why Quantum Readiness Matters for Enterprise Security

Quantum computing is gradually moving from research laboratories toward practical relevance. While the exact timeline remains uncertain, organizations are increasingly recognizing that the future impact on cybersecurity deserves attention today.

Executive Summary

Modern digital infrastructure depends heavily on cryptography. Secure communications, digital identities, software updates, certificates, and trust relationships all rely on cryptographic mechanisms that were designed long before quantum computing became a realistic consideration.

As quantum technologies continue to evolve, organizations must begin understanding how future cryptographic changes could affect their systems, data, and operational processes.

The objective is not immediate migration. The objective is preparation.

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News – Breakthrough in simulating magic state cultivation with reduced circuit complexity

On September 12, 2025, Quantum Zeitgeist reported on research by Kwok Ho Wan (Imperial College London), Zhenghao Zhong (University of Oxford), and colleagues. The team developed a method to simulate magic state cultivation—a process essential for fault-tolerant quantum computation—using significantly fewer computational steps.

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News – Quantum experiment rewinds and fast-forwards particles in time

On September 12, 2025, GameStar reported on a breakthrough by Austrian researchers: they developed a technique that can “rewind” or “fast-forward” the state of photons or qubits, effectively allowing quantum systems to travel backward or forward in time on microscopic scales. The method, based on a so-called Quantum Switch, was successfully demonstrated with photons and superconducting qubits. A binary measurement (0 or 1) indicates whether the temporal manipulation succeeded, collapsing the superposition into a defined outcome.

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News – Frankfurt Researchers Capture Quantum Dance with X-ray Laser

Scientists at Goethe University Frankfurt have, for the first time, directly imaged atomic motion at the quantum level using the world’s most powerful X-ray laser. Their observations reveal the continuous “dance” of particles, even at absolute zero, confirming the quantum mechanical zero-point motion within larger molecules. The results were published in Nature.

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News – Could the “Q-Day” Become the Worst Day in History?

According to a new report by Johann Grolle (SPIEGEL), the so-called “Q-Day” could mark a dramatic turning point in computing history. “Q” refers to quantum computers, the next generation of machines expected to be thousands of times faster than today’s classical supercomputers. Already, a quantum computer commissioned by Google six years ago solved a mathematical problem in under three and a half minutes that would have taken traditional supercomputers thousands of years.

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Quantum Update – Cryptography Cracks Quantum Advantage: A Surprising Link

On July 28, 2025, ScienceDaily reported a breakthrough from Kyoto University: researchers proved that quantum advantage—the point at which quantum computers outperform classical ones—is mathematically equivalent to the hardness of certain cryptographic puzzles. In other words, the same cryptographic assumptions that secure quantum-resistant systems also determine when quantum speed‑ups truly kick in.

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Quantum Update – Record-Breaking: Transmon Qubit Hits Millisecond Coherence

On July 8, 2025, physicists from Aalto University in Finland achieved a major milestone: for the first time, a transmon qubit reached an echo coherence time in the millisecond range — with a peak around 1 ms and a median of approximately 0.5 ms. The previous state-of-the-art hovered below 0.6 ms.

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