Description: Explore why quantum computing threatens today’s encryption, current post‑quantum standards (Kyber, Dilithium, HQC), adoption strategies, and how organizations can prepare now for “Q‑Day.” Sommaire: 1.Introduction 2.Understanding the Quantum Threat 3.What Is Post‑Quantum Cryptography (PQC)? 4.2025 Milestones in PQC 5.Who Must Prepare and Why 6.5‑Step Migration Strategy 7.Challenges & Solutions 8.Looking Ahead: 2026–2027 and Beyond…