October 2017
Intermediate to advanced
456 pages
9h 56m
English
Content preview from Industrial Cybersecurity
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Process automation protocols
Process automation protocols include PROFIBUS, DeviceNet, ControlNet, Modbus, and CIP. These protocols are used to connect control devices together, be it a PLC to a sensor, a PLC to a PLC, or an engineering workstation to a control device to configure or program the device:
These protocols tend to be found mostly in levels 3 and lower of the Purdue model. A properly configured IDMZ should block any process automation protocol from leaving the Industrial zone.
From a security perspective, these protocols were never designed with security in mind. They forgo using encryption or implementing integrity checks to provide ...
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