Post-quantum cryptography: protection from quantum computers

Post-Quantum Cryptography How Companies Are Future-Proofing their Encryption

2026-05-19 A guest article by Johannes Oberreuter* | Translated by AI 3 min Reading Time

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Encryption methods that companies still use today to secure their data are at risk from quantum computing. Post-quantum cryptography (PQC) is the answer to this threat.

Quantum computing threatens most current encryption algorithms.(Picture: © Jori - stock.adobe.com) — Quantum computing threatens most current encryption algorithms.
(Picture: © Jori - stock.adobe.com)

Today, digital security is often based on methods that can hardly be cracked by conventional computers. But quantum computers call this security into question: they solve the mathematical problems on which many encryption methods are based much faster and thus override central protection mechanisms. Post-quantum cryptography protects sensitive data today from the attacks of tomorrow.

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