A microvisor-based approach enables secure remote live debugging of MCUs (Microcontrollers), allowing developers to debug devices line-by-line, set breakpoints, inspect registers and variable values, and receive encrypted commands and data from a local development PC or Mac to the edge device. This capability opens up new opportunities for firmware development, decoupling hardware manufacturing from firmware development, and enabling frequent and reliable firmware updates. The microvisor element runs alongside application code on the same MCU but with different security privileges, providing complete security and adaptability to various OS and programming language approaches. Secure remote live debugging offers cost savings, feature development agility, and maintenance efficiencies by allowing developers to react to in-the-field product issues as they happen.