Inside Cloudflare's Post-Quantum Journey: Bas Westerbaan on Real-World Implementation

Shielded: The Last Line of Cyber Defense

In the premier episode of Shielded: The Last Line of Cyber Defense, Johannes Lintzen welcomes Bas Westerbaan, Research Engineer at Cloudflare, to break down real-world post-quantum migration challenges and solutions:

• Cloudflare’s early PQC adoption - lessons from years of real-world implementation
• Why you need two migrations (encryption today, authentication next)
• How to secure executive buy-in & conduct a cryptographic inventory
• The hidden performance & compatibility challenges of PQC deployment
• Why vendor readiness & regulatory compliance will shape adoption

Bas Westerbaan is a Research Engineer at Cloudflare, specializing in post-quantum cryptography and its practical implementation at scale. With a PhD in theoretical quantum computing from Radboud University and experience across academia and industry, including roles at UCL and PQShield, Westerbaan brings a unique perspective to the intersection of mathematical theory and real-world cryptographic engineering. He has been instrumental in Cloudflare's post-quantum initiatives since 2017, leading efforts in implementing quantum-safe encryption and helping shape the company's phased approach to post-quantum migration

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