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Last updated: April 29, 2026
Hardware reconnaissance, UART/JTAG, firmware extraction with binwalk, BLE/Zigbee testing, cloud API audit.
IoT device security testing combines firmware analysis, hardware interfacing, network protocol testing, and mobile companion app review. Many findings come from the firmware — default passwords, hardcoded keys, unsafe update mechanisms, debug ports left enabled. This module covers a practical IoT testing workflow with the tools that matter.
Scoping an IoT engagement
Before testing, agree:
- Which device(s) — model, firmware version, lab samples available?
- Which protocols and cloud APIs are in scope?
- Is hardware tampering allowed (case opening, JTAG/UART access)?
- Mobile companion apps in scope?
- Customer cloud account in scope?
- Constraints — production cloud account vs sandbox; live vs test devices
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