“먼저 훔치고 나중에 해독한다” 양자 시대의 새 공격 공식

As quantum computing capabilities advance, the 'Harvest Now, Decrypt Later' attack—where adversaries steal encrypted data today to decrypt later with quantum systems—poses an immediate and tangible threat to long-term data security across finance, healthcare, and government sectors. Despite two-thirds of cybersecurity experts expressing concern about quantum decryption capabilities, fewer than 5% of organizations have made quantum threats a priority, exposing a critical gap between threat awareness and organizational preparedness. While Post-Quantum Cryptography standards and regulatory frameworks (NIST standardization, EU mandates) are being implemented, the window for proactive migration is closing—organizations must act now to avoid catastrophic data exposure when quantum computing becomes practical.