VTT White paper

Preparing for post quantum cryptography and quantum safe cybersecurity

Quantum computing is set to transform cybersecurity. As current encryption methods become vulnerable, organisations must act now to protect their data and systems. Post‑quantum cryptography introduces new methods designed to remain secure even against future quantum attacks. This playbook explains how the transition affects your organisation and provides practical guidance for moving towards quantum‑safe cybersecurity in a structured and manageable way.

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Content summary

This playbook explains how organisations can prepare for the transition to post-quantum cryptography as advances in quantum computing begin to challenge current encryption methods. It translates complex developments in cryptography and cybersecurity into clear, actionable steps, helping organisations understand the risks, identify key challenges and take practical action to protect data and systems. It is designed for decision-makers and technology teams seeking to build long-term resilience in the emerging quantum era. 


Contents:

  • What post-quantum cryptography is and why it matters now
  • Technological developments driving the transition
  • Key barriers and challenges organisations face
  • Practical steps to get started
  • Building long-term resilience in the quantum era
     
Quantum computer parts

Key findings

The playbook highlights the critical shifts shaping the transition to quantum safe cybersecurity and what organisations must do next. 

  • Current cryptography will become vulnerable in the quantum era
  • Cryptography is deeply embedded and difficult to replace at scale
  • Organisations must understand where cryptography is used before acting
  • The transition requires early planning and long term resilience building
     

Who is this for?

This playbook is designed for organisations preparing for the impact of quantum computing on cybersecurity and digital trust.

  • Decision‑makers responsible for cybersecurity strategy
  • Technology and IT teams managing systems and infrastructure
  • Security and risk professionals assessing future threats
  • Organisations handling sensitive or long‑lived data
  • Leaders planning long‑term digital resilience
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Authors

Produced by VTT.