---
id: 4300
title: "Black Box Probing: a Security Analysis of Xiaomi's MJA1 Secure Chip"
source_domain: blog.quarkslab.com
source_url: "https://blog.quarkslab.com/black-box-probing-a-security-analysis-of-xiaomis-mja1-secure-chip.html"
published_at: "2026-06-17 22:00"
tags: ["vulnerability-research", "hardware-security", "reverse-engineering", "firmware", "xiaomi", "secure-chip", "i2c"]
phying_url: "https://phying.com/item/4300"
lang: en
---

# Black Box Probing: a Security Analysis of Xiaomi's MJA1 Secure Chip

## Summary

Quarkslab's black-box analysis of Xiaomi's MJA1 secure chip: hardware identification, I2C sniffing, flash dumping, firmware reverse engineering and mapping its command protocol.

## Intelligence Metadata

- **Sources:** blog.quarkslab.com
- **Published:** 2026-06-17 22:00
- **Original:** https://blog.quarkslab.com/black-box-probing-a-security-analysis-of-xiaomis-mja1-secure-chip.html
- **Phying News:** https://phying.com/item/4300