Moving to post-quantum cryptography: Not easy, but critical

Shifting to post-quantum cryptography: It's not easy, but we need to act

'Transitioning to PQC is far from simple. New algorithms often involve significantly larger key sizes, increased bandwidth consumption, and greater processing demands. This can ripple through infrastructure..."

Vivien Mura

Sep 08, 2025 - 5 min read

While enterprise IT leaders remain focused on cyber-extortion and are preparing to manage new risks related to the growing use of AI, a quieter but just as critical challenge is emerging: the security of our cryptographic foundations, writes Vivien Mura, Group CTO, Orange Cyberdefense.

Recent surveys indicate that 62% of cybersecurity professionals worry quantum computing could break today’s cryptography, yet just 5% of organisations have a strategy for quantum-safe migration.

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