Method of Detecting an Interference Source in an Industrial Facility

A method of detecting a malicious interference source in a wireless network in an industrial facility includes receiving network quality information from a plurality of network devices, detecting a degradation in a section of the network based on the network quality information from at least one network device, determining a geographical area associated with the section of the network, and determining a location of the malicious interference source based on measurements of at least one network key performance indicator KPI from at least one mobile unit in the geographical area.