There’s a strange tension you feel the first time someone asks,“Can our IoT product be quantum-safe?” On one hand, it sounds like a marketing question.A buzzword tossed around by people who haven’t spent a day in firmware development.Quantum computers, cryptanalysis, lattice problems — these things feel oceans away from a microcontroller that’s struggling to fit a LoRaWAN stack and a couple of timers. But on the other hand, something deeper kicks in — a quiet awareness that t

Srihari Maddula Modern security engineering is accustomed to evaluating cryptographic algorithms on benchmarks: key sizes, throughput, theoretical hardness, and forward secrecy. Yet real systems are built, deployed, and maintained in environments where assumptions fracture slowly and silently over time — not in dramatic, textbook breaks. When engineers step beyond academic comparisons and attempt to embed post-quantum cryptography into long-lived, resource-constrained devices

Over the past six parts of this series, we’ve explored the entire spectrum of IoT communication technologies – from cellular and satellite IoT (NB-IoT, 5G, Starlink) to short-range wireless (BLE, ZigBee, Wi-Fi), LPWAN (LoRa, Sigfox, Mioty), wired/optical systems (Ethernet, KNX, Fiber), and industrial-grade mission-critical protocols (Wireless HART, ISA100, DECT-2020, TETRA). Now, in this final part, we’ll look ahead to what’s next for IoT connectivity. Technology never stands

Public-key cryptography protects most device identities, key exchanges and firmware signatures today. It rests on problems (RSA and elliptic curves) that a large, fault-tolerant quantum computer could solve with Shor's algorithm. No such machine exists yet. The reason to act now is the lifetime of IoT hardware: a device shipped today may still be in service in 2040, and traffic recorded today can be stored and decrypted later. On 13 August 2024, NIST published the first three

Introduction: The Dawn of a Quantum Revolution Quantum computing has reached a pivotal moment. On December 9, 2024, Google unveiled its “Willow” chip, showcasing unparalleled advancements in error correction and computational power. This milestone brings quantum technology closer to mainstream application, unlocking transformative opportunities in optimization, material science, AI, and smart infrastructure development. However, these advancements also introduce a significant