Blockchain in a Post-Quantum World

Infographic element

Find Threat Talks on

Blockchain in a Post-Quantum World

What does quantum computing mean for blockchain? And how should platforms respond before Q-day becomes reality?

In this episode of Threat Talks, ON2IT Field CTO Rob Maas is joined by Jeroen Scheerder, who leads ON2IT’s post-quantum cryptography research group.

They explore how quantum algorithms interact with current blockchain designs, what makes certain cryptocurrencies more flexible than others, and where we’re already seeing movement toward future-ready solutions.

⛓     What exactly is blockchain again?
💪 How does post-quantum cryptography challenge RSA, SHA and other encryption standards?
🧭 What happens to blockchain in a post-quantum world? 

A practical look at the intersection of cryptography, innovation, and resilience.

Your cybersecurity experts

Jeroen Scheerder, ON2IT

Jeroen Scheerder

Director of Technical Services
ON2IT

Rob Maas, Field CTO, ON2IT

Rob Maas

Field CTO
ON2IT

Episode details

Post-Quantum Cryptography and the Future of Bitcoin

Blockchain is built on math. But what happens when the math changes? As quantum computing continues to develop, systems that rely on classical cryptography are starting to rethink how secure their foundations really are.

In this episode of Threat Talks, ON2IT Field CTO Rob Maas is joined by Jeroen Scheerder, lead of ON2IT’s post-quantum cryptography research group. They unpack the fundamentals of blockchain, the cryptographic assumptions behind it, and what quantum computing could realistically change in the years ahead.

They explore why platforms like Bitcoin may face more obstacles than others, what Ethereum has already done to evolve, and why cryptographic agility is fast becoming a must-have feature.

⛓ How does blockchain actually work again?
🔓 What makes classical encryption vulnerable to quantum algorithms?
🧠 Why can’t you just “update” Bitcoin?

From cryptographic design to real-world limitations, this episode is all about understanding the risks and opportunities in a post-quantum future.

Infographic element

Get your Hacker T-shirt

Join the treasure hunt!

Find the code within this episode and receive your own hacker t-shirt for free.

11 + 8 =

Christmas Hacker