Big thanks to ‪@Cisco‬ for sponsoring this video and sponsoring my trip to Cisco Live Vegas 2026.

In this deep dive into the future of networking, we explore the reality of quantum networking and Cisco's groundbreaking announcement of the world's first Universal Quantum Switch. Quantum computing is no longer just a buzzword; it's moving into the mainstream, bringing massive implications for network engineers and cybersecurity professionals in 2026 and beyond.

We discuss why a quantum switch is essential for scaling distributed quantum computers and how it translates different quantum modalities, acting as a universal fabric. We also break down the quantum stack, from entanglement sources generating 200 million photon pairs per second to nanosecond switching speeds.

Beyond the hardware, we tackle the elephant in the room: Shor's algorithm and the imminent threat to classical encryption (RSA/Diffie-Hellman). With "harvest now, decrypt later" attacks already happening and the January 2027 CNSA 2.0 compliance deadline approaching, we cover exactly how you can prepare using post-quantum cryptography (PQC). Finally, we explore fascinating real-world applications, including high-frequency trading advantages, unbreakable eavesdropper detection using the no-cloning theorem, and secure position verification.

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0:00 - Coming Up

0:28 - Intro

02:13 - Universal Quantum Switch

04:11 - Why do we need a Quantum Switch?

06:42 - Scale Out Quantum Fabric

09:02 - Multi-Modality Ability

10:17 - Sharing an Entanglement Source

14:08 - Testing the Universal Quantum Switch

17:20 - The Stack: Application Layer

21:30 - Using Quantum to Detect a Tap

24:24 - Quantum Use-Cases

28:37 - The Stack: A Summary

30:26 - Advice for the Future

33:28 - Response to “Quantum is Fake”

36:12 - Holistic Quantum Security

40:06 - Shor’s Algorithm

41:47 - Cisco’s Quantum-Safe Devices

46:00 - Resources to Learn More

47:00 - Outro

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Disclaimer: This video is for educational purposes only.

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