Adventures in MQTT Part II: Identifying MQTT Brokers in the Wild

The use of publicly accessible MQTT brokers is prevalent across numerous verticals and technology fields. I was able to identify systems related to energy production, hospitality, finance, healthcare, pharmaceutical manufacturing, building management, surveillance, workplace safety, vehicle fleet management, shipping, construction, Read More …

A Blind Spot in ICS Security: The Protocol Gateway [Part 3] What ICS Security Administrators can Do

A protocol gateway is a small network device, also called a “protocol converter” or “IoT gateway.” It is similar to an “interpreter” in the digital word, and acts as a communications intermediary between different protocols. As the integration of networks Read More …

A Blind Spot in ICS Security: The Protocol Gateway [Part 2] Vulnerability Allowing Stealth Attacks on Industrial Control Systems

A protocol gateway is a small network device, also called a protocol converter” or “IoT gateway.” It is similar to an “interpreter” in the digital word, and acts as a communications intermediary between different protocols. As the integration of networks Read More …