• •Quarkslab researchers published a technical breakdown of the MJA1 security chip used in Xiaomi hardware
• •Analysis confirmed the chip relies on a proprietary design, which the team evaluated through physical probing and side-channel monitoring
• •Full internal architecture of the chip remains uncertain as the researchers lacked access to the silicon manufacturer's proprietary documentation

Security firm Quarkslab recently detailed a black-box analysis of Xiaomi's MJA1 secure chip to evaluate its hardware-level defenses. The study follows industry efforts to verify the security claims of integrated chips found in mass-market IoT devices. However, the researchers noted that their findings are limited by the black-box nature of the investigation, leaving the chip's internal logic gates and full firmware operations largely opaque. Whether the MJA1 provides robust resistance against sophisticated physical attacks remains a subject of ongoing debate among hardware security experts.