The Post-Quantum World

Hosted by Konstantinos Karagiannis, an Associate Director at consulting firm Protiviti, The Post-Quantum World tackles quantum computing from the angle that matters most to organizations right now: what happens when these machines get powerful enough to break current encryption. The show has published over 120 episodes on a biweekly schedule and remains actively updated through early 2026. Guests include quantum startup founders, venture capitalists investing in the space, and researchers working on post-quantum cryptography standards. Recent episodes have covered topics like the acceleration of RSA factoring timelines, quantum money protocols, self-destructing digital signatures, and the booming job market for post-quantum cryptography specialists. Karagiannis brings a business and security perspective that complements the more physics-focused quantum podcasts. He regularly gets into the practical consequences of quantum computing progress, from how companies should prepare their encryption infrastructure to which quantum hardware approaches are most likely to reach commercial scale. The show strikes a useful middle ground between pure science and pure business analysis. You get enough physics to understand why a particular qubit architecture matters, but the conversation always circles back to real-world impact. For anyone tracking quantum computing not just as a scientific curiosity but as something that will reshape cybersecurity and the technology industry, this podcast fills a gap that most physics shows leave open.