Sécurité de l'écosystème Espressif — eFuse, NVS, secure boot, OTA.
The ESP32 NVS (Non-Volatile Storage) is where applications store persistent data: WiFi credentials, API tokens, device keys, calibration data. This course teaches you to extract and decode NVS from any flash dump — finding what developers stored and forgot about. HARDWARE REQUIRED: You need a physical ESP32 to follow the lab lessons.