Quantum Computing and Cybersecurity: What Enterprises Should Prepare For สำหรับองค์กรไทย

Quantum computers capable of breaking current public-key cryptography (RSA, ECC, Diffie-Hellman) don't exist yet at scale, but the cryptographic community is preparing. NIST finalised its first post-quantum cryptographic standards in 2024, and organisations should begin preparing for the transition. The concern is not just future decryption but 'harvest now, decrypt later' attacks — adversaries collecting encrypted data today to decrypt when quantum capabilities mature. Preparation steps include: inventorying cryptographic dependencies across your systems, tracking NIST post-quantum standards, beginning crypto-agility planning (the ability to swap cryptographic algorithms without major system changes), and incorporating quantum readiness into security architecture decisions. Security testing can assess current cryptographic implementations to identify dependencies that will need updating.