Quantum computing refers to a new class of computing that can solve certain problems far faster than today’s systems. While large-scale quantum computers are not yet widely available, their development has direct implications for how data is protected today.
Many encryption methods currently used to secure data, systems, and communications are based on mathematical problems that quantum computers are expected to solve more efficiently in the future. This creates a risk for organisations that rely on long-term confidentiality, trust relationships, and cryptographic controls.
For most organisations, the risk is not immediate failure — it’s delayed exposure. Data protected today may be harvested now and decrypted later. Systems designed without future transition in mind may face costly, rushed remediation.
Post-quantum readiness is about understanding where assumptions may break and preparing for change before it becomes urgent.