The Post-Quantum World

Latest Episodes:

Whispering Quantum Keys … Is QKD Still Viable as PQC? — with Vanesa Diaz of LuxQuanta Nov 26, 2025

Show notes

We cover post-quantum cryptography (PQC) regularly on this show, focusing on the new math-based ciphers that will secure the Internet as quantum computing becomes more powerful. But what about physics-based encryption or quantum key distribution (QKD)? Is that still a thing? We examine how exploiting the laws of quantum physics can securely exchange encryption keys over a fiber and explore the benefits of the newer continuous-variable QKD. CVQKD leverages off-the-shelf telecom components for affordability, integrates with existing data networks, achieves higher key-generation rates, and reaches distances of up to 100 kilometers without requiring dark fibers. Real-world demos include securely linking hospitals in Madrid for remote consultations via Telefonica's network, and there could be a future where QKD devices are integrated into our home routers, democratizing quantum security. Join host Konstantinos Karagiannis for a wide-ranging chat with Vanesa Diaz from LuxQuanta.
For more information on LuxQuanta, visit https://www.luxquanta.com/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

Spin Qubits: Sensing Heartbeats to Dark Matter – with Benjamin Pingault of Argonne National Laboratory Nov 12, 2025

Show notes

The word “foundry” might make you think of large machines pouring metal into molds, but Argonne National Labs has a Quantum Foundry that implants individual atoms, like silicon, into materials such as diamond. The resulting spin qubits are optically active and can use photons to communicate. We can expect spin qubits to help interconnect systems, which could help us achieve distributed quantum computing, but they also could be used for everything from room-temperature biological sensors to durable, space-based dark matter detectors. Join host Konstantinos Karagiannis for a cosmic chat with Benjamin Pingault from Argonne National Laboratory.
For more information on Argonne National Laboratory and the Argonne Quantum Foundry, visit https://www.anl.gov/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

From Quantum Economy to Simulation Theory – with Anders Indset Oct 29, 2025

Show notes

How are recent quantum computing breakthroughs reshaping business, competition, and society itself? What global challenges might quantum and AI either help with or introduce? We’re trying something a little different and asking a futurist and bestselling author of The Quantum Economy to weigh in on how our increasing qubit counts might all play out in a few years. Join host Konstantinos Karagiannis for a wide-ranging, philosophical chat with Anders Indset, and get ready to hear about simulation theory towards the end.
For more information on Anders Indset and his books, visit https://andersindset.com/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

From Firewalls to Quantum Shields: A Blueprint for PQC Migration – with Rich Campagna of Palo Alto Networks Oct 15, 2025

Show notes

You’ve likely heard of Pareto’s Principle or the 80/20 rule. Is there a way to achieve most of the benefits of crypto-agility with minimal effort? Palo Alto Networks has undoubtedly made its mark with firewalls and security detection and response offerings. We learn how they can also provide a rapid head start to PQC migration, covering everything from cryptographic inventory to creating wrappers for legacy app communications that need to remain secure against quantum computing threats. Even the latest version of their PAN-OS is PQC enabled. And you won’t believe what they’re seeing in network traffic: PQC used to hide hacking attacks? Join host Konstantinos Karagiannis for a wide-ranging chat with Rich Campagna from Palo Alto Networks where they cover practical ways to get your company ready for tomorrow.
For more information on Palo Alto Networks, visit https://www.paloaltonetworks.com/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

Room Temperature Quantum Computing - with Marcus Doherty of Quantum Brilliance Oct 01, 2025

Show notes

Can you put a quantum computer in a satellite, car, or even laptop? It’s possible with diamond-based quantum technologies that work at room temperature. Nitrogen-vacancy (NV) center qubits challenge the notion that quantum computing is confined to massive data centers. Such mass-deployable quantum computers and sensors can be used in medical diagnostics, satellite imaging, and anywhere local inference is useful. Join host Konstantinos Karagiannis for a wide-ranging chat with Marcus Doherty from Quantum Brilliance and learn how soon we’ll have 64 mobile qubits!
For more information on Quantum Brilliance, visit https://quantumbrilliance.com/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

Running Shor’s Algorithm on Logical Qubits - with Peter Noell of Infleqtion Sep 17, 2025

Show notes

For the first time, Shor’s Algorithm is running on logical qubits! The team at Infleqtion used their Sqale neutral atom processor to accomplish the feat. While the setup only uses six logical qubits, and we’re still in the range of factoring 15 or 21, this is both a proof of concept and a proof of the need for post-quantum cryptography (PQC). We discuss the aggressive 2.5:1 physical-to-logical ratio of Sqale, which could lead to hundreds of logical qubits by 2028. Also, find out why Shor’s Algorithm could surprisingly end up being one of the first killer apps for quantum computing, rather than a later use case. Join host Konstantinos Karagiannis for a wide-ranging chat with Peter Noell from Infleqtion.
For more information on Infleqtion, visit https://infleqtion.com/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

Welcome to the Quantum Network – with Reza Nejabati and Ramana Kompella of Cisco Sep 03, 2025

Show notes

Imagine a world where quantum computers seamlessly share entangled particles across data centers, solving problems beyond the reach of classical systems. This may be possible soon thanks to a groundbreaking quantum networking entanglement chip capable of generating 200 million entangled photon pairs per second at room temperature. Cisco is redefining networking again, doing everything from detecting eavesdroppers on classical networks to laying the foundation for a quantum internet … and potentially scaling quantum computing. Join host Konstantinos Karagiannis for a wide-ranging chat with Reza Nejabati and Ramana Kompella from Cisco.
For more information on Cisco’s quantum research, visit https://research.cisco.com/quantum-research.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

One PQC Playbook – with Kevin Hilscher of DigiCert Aug 20, 2025

Show notes

DigiCert is widely recognized for its expertise in PKI and as a TLS certificate authority. As you can imagine, they have a significant perspective on the quantum computing threat to encryption and the migration to post-quantum cryptography (PQC). We cover everything from the challenges of upgrading IoT devices to ML-DSA signature sizes, as well as the new DigiCert One platform the company offers to help manage the migration process. In the middle of this episode, you’ll even get a clear summary of what a successful rollout to PQC looks like. Join host Konstantinos Karagiannis for a wide-ranging chat on actionable PQC steps you can take with Kevin Hilscher from DigiCert. There’s even a Quantum Safe Playground to experiment with!
For more information on DigiCert, visit www.digicert.com/.
Visit the Quantum Safe Playground at https://labs.digicert.com/quantum-safe.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker and follow Protiviti on LinkedIn and Twitter: @Protiviti.
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

Cracking Encryption by 2030? – with Dean Kassmann of IonQ Aug 06, 2025

Show notes

IonQ is poised to redefine the quantum computing landscape, projecting a staggering 80,000 logical qubits by 2030—potentially unlocking the power to crack encryption. NIST has us on a timeline to upgrade to post-quantum cryptography (PQC) by 2035, so this 5-year gap may spell doom for cybersecurity. Of course, these machines will also revolutionize industries from finance to drug discovery to AI. How is IonQ boosting their roadmap by orders of magnitude? Learn about their cutting-edge acquisitions and bold vision for scalable, error-corrected systems in this wide-ranging chat between host Konstantinos Karagiannis and IonQ SVP Dean Kassmann.
For more information on IonQ, visit https://ionq.com/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker and follow Protiviti on LinkedIn and Twitter: @Protiviti.
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

Open-Source Quantum Sensing at DEF CON – with Mark Carney and Victoria Kumaran at Quantum Village Jul 23, 2025

Show notes

DEF CON 33 approaches, bringing with it the fourth year of Quantum Village. Nothing like getting hands-on with quantum computing and sensing technology at the world’s leading hacking conference. To that end, this episode explores the open-source quantum sensing device and software that our guests Mark Carney and Victoria Kumaran are presenting in Vegas. And yes, for the third year in a row, host Konstantinos Karagiannis will be speaking, too. Feel like joining 30,000 others in person? We also cover some of the other activities and topics you’ll experience.
For more on DEF CON, visit https://defcon.org/index.html.
For more on Quantum Village, visit https://quantumvillage.org/.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker and follow Protiviti on LinkedIn and Twitter: @Protiviti.
Visit Protiviti at www.protiviti.com/US-en/technology-consulting/quantum-computing-services to learn more about how Protiviti is helping organizations get post-quantum ready.
Follow host Konstantinos Karagiannis on all socials: @KonstantHacker
Questions and comments are welcome!
Theme song by David Schwartz, copyright 2021.
The views expressed by the participants of this program are their own and do not represent the views of, nor are they endorsed by, Protiviti Inc., The Post-Quantum World, or their respective officers, directors, employees, agents, representatives, shareholders, or subsidiaries. None of the content should be considered investment advice, as an offer or solicitation of an offer to buy or sell, or as an endorsement of any company, security, fund, or other securities or non-securities offering. Thanks for listening to this podcast. Protiviti Inc. is an equal opportunity employer, including minorities, females, people with disabilities, and veterans.

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