A new quantum architecture just made breaking RSA-2048 encryption ten times easier, compressing the cryptographically relevant quantum computer timeline to 3–5 years. Iceberg Quantum's Pinnacle design needs fewer than 100,000 qubits, validated by hardware partners PsiQuantum, Diraq, and IonQ. Here's what CISOs and enterprise leaders must understand about NIST's finalized PQC standards, NCSC migration milestones, and the 5-step action plan to get ahead of the threat.