Security

Operational Technology (OT)

Hardware and software that monitors or controls physical equipment and processes, such as refrigeration, HVAC, manufacturing lines and utility systems. Unlike IT, a compromise of OT can cause physical damage, so availability and integrity of the process outrank data confidentiality.

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How a Refrigeration Controller's Web Interface Becomes a Physical-Damage Attack Surface

Supervisory refrigeration controllers are small Linux web servers with authority over compressors, defrost cycles and alarms. Here is what an attacker gets from one, and why.

intermediate 6 min read

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