Post-quantum: should you worry?
Quantum computers, Shor’s algorithm, “harvest now, decrypt later”, the NIST standards and the European timeline: what to do right now.
Presented byBelinda
9 min readUpdated on 2 October 2026What you will learn
- Understand, without any maths, why a quantum computer threatens RSA and elliptic curves
- Assess the “harvest now, decrypt later” risk for your own data
- Know the new NIST standards (ML-KEM, ML-DSA, SLH-DSA) and the role of HQC
- Place the deadlines set by ANSSI, the European Union and NIST
- See how far real-world deployment has gone, from browsers to servers
- Start a cryptographic inventory and a crypto-agility programme
Free chapter with your account
Chapter 1 is free to read. Chapters 2 to 21, like the Junior, Senior and Expert levels of the Cyber Quiz, are free too: all you need is a free KrakenShield account with a confirmed email address.
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