The quantum computing threat to current encryption standards is no longer theoretical. In 2026, the timeline for quantum computers capable of breaking RSA and elliptic curve cryptography has shortened significantly. The National Institute of Standards and Technology (NIST) has finalized its post-quantum cryptography standards, and forward-thinking organizations are already migrating their encryption infrastructure.
The concept of “harvest now, decrypt later” attacks is driving urgency. Adversaries are already collecting encrypted data that they cannot decrypt today, storing it until quantum computers become powerful enough to break current encryption. Any data encrypted today that needs to remain confidential for 5-10 years is at risk. This includes intellectual property, healthcare records, financial data, and government communications.
NIST’s Post-Quantum Cryptography Standards
In 2024-2025, NIST finalized standards for three post-quantum cryptographic algorithms. CRYSTALS-Kyber for general encryption, CRYSTALS-Dilithium for digital signatures, and FALCON for applications requiring smaller signatures. These algorithms are designed to resist attacks from both classical and quantum computers, ensuring data remains secure in a post-quantum world.
For web applications, the transition to quantum-safe algorithms requires updates to TLS certificates, code signing, email encryption, and authentication systems. The process is complex because hybrid approaches are needed during the transition period — supporting both current and quantum-safe algorithms simultaneously to maintain backward compatibility.
What Businesses Should Do in 2026
Start with a cryptographic inventory. Identify all systems, applications, and data transmissions that use public-key cryptography. This includes TLS certificates, VPN connections, code signing, document signing, encrypted email, and database encryption. Many organizations are surprised by how widely cryptography is embedded in their infrastructure.
Prioritize migration based on data sensitivity and longevity. Systems protecting long-lived secrets — signing keys, certificate authorities, long-term archives — should be migrated first. Web servers and application-to-API communications should follow. Consumer-facing systems can be migrated later once browser support for post-quantum algorithms matures.
At The Cyber Doctors, our enterprise threat defense team includes post-quantum cryptography assessment and migration planning as part of our comprehensive cybersecurity services. We help organizations identify cryptographic dependencies and build migration roadmaps aligned with NIST standards and industry best practices.
