Marcus Stilwell

Post Quantum cryptography block on other smaller blocks

Post-Quantum Cryptography Explained: Why Your Digital Certificates Are Already at Risk

This article outlines why post‑quantum cryptography is becoming an urgent priority and how organizations should respond. It explains the growing risk of “harvest now, decrypt later” attacks, the accelerating timelines driven by NIST standards and government mandates, and why every industry relying on RSA or ECC faces exposure. The piece highlights the operational impact of PQC on digital certificates, from updated hardware and issuance systems to faster certificate lifecycles and emphasizes the need for early preparation. It also introduces the emerging PQC Maturity Model as a way to measure readiness and stresses the importance of automation as certificate volumes and cryptographic transitions grow. Ultimately, it underscores that proactive inventory, monitoring, and modernization are essential as organizations move toward quantum‑resistant encryption and a future defined by stronger standards and accelerated cryptographic change.
• Marcus Stilwell
Post‑Quantum Cryptography Readiness