I built an intentionally vulnerable BLE smart lock on an ESP32 and then broke into it using nothing but my phone. No custom scripts. No Linux machine. No Flipper Zero. Just nRF Connect ā a free ap...
Introduction MQTT is everywhere in IoT. Agriculture, manufacturing, smart cities, energy monitoring ā all of them running thousands of sensors and actuators over the same lightweight pub/sub proto...
š¢ Introduction Operational Technology (OT) environments rely heavily on legacy industrial protocols such as Modbus TCP for communication between PLCs, sensors, and SCADA systems. While these proto...
Hardware security assessments often go beyond software and firmware into direct chip-level analysis. In this blog, I demonstrate a real-world EEPROM extraction and analysis performed on an HP DeskJ...
š Hello World ā Iām Harsh Srivastava Welcome to my cybersecurity research blog. Iām a Security Researcher with a primary focus on IoT, OT (Operational Technology), and Application Security. This ...