Q-Day Risk Accelerates: Big Tech’s Post-Quantum Readiness Gap Is Becoming a Board-Level Security Issue Published: Apr 17, 2026 08:24 AM CT Ars Technica’s latest security analysis argues that the countdown to “Q-Day” is becoming operational, not academic. The article highlights a familiar but dangerous ... Cybersecurity Enterprise Risk Infrastructure Post-Quantum Cryptography Quantum Computing Apr 17, 2026