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Event source type: External supplier
Description
External suppliers are any contractual partners of the water utility that provide necessary goods, systems, software or similar to the utility. This could be for example the suppliers of additives, providers of software components, cloud operators or similar. However, suppliers that can are designated as critical infrastructure (like suppliers of electrical energy) are not part of the term external supplier.
Measures
RawWaterPipelineProtection
SecurityCheckOfEmployees
AdditionalStorageCapacity
WaterNetworkInterventionsForWaterSupplyRecovery
RestrictedAccesToITSytem
DataBackups
SupervisionOfExternals
EmergencyPlans
RedundantAssetsAndInfrastructures
WaterTreatmentControl
WaterQualityOfflineSurveillance
AdditivesQualityCheck
InformationSecurityGuidelines
InformationSecurityManagementSystem
SoftwareManagement
SecureOutsourcing
Documentation
IdentificationClassificationAndRiskAssessmentTool
Events
Gate 234 - Contamination of WDN tank
Gate 243 - Insufficient power supply
Gate 258 - WDN control center power supply failure
Gate 259 - Insufficient power supply
Gate 95 - Surface water contamination
Gate 184 - Suspended exploitation of groundwater from authorities
Gate 225 - Inability to perform WTP process due to enegy supply failure
Basic Event 240 - Upadate of OS causes false positive alarms from Event Detection System
Basic Event 239 - Subcontractor physically disconnects local PLC
Basic Event 243 - External power supply provider failure
Basic Event 257 - Incorrect execution or failure of software acquired from an external party crashes PBS control system
Basic Event 281 - Incorrect execution or failure of software acquired from an external party crashes WDN control system
Basic Event 227 - Fake news about contamination in WTP using manipulated water company public communication
Basic Event 180 - Incorrect execution or failure of software acquired from an external party crashes reservoir control system
Basic Event 183 - Raw water pump energy supply failure
Basic Event 200 - Incorrect execution or failure of software acquired from an external party crashes abstraction well control system
Basic Event 216 - Incorrect execution or failure of software acquired from an external party crashes WTP control system
Basic Event 223 - Loss of external power supply for the WTP
Gate 118 - Disinfectant composition altered
Gate 143 - External contamination of WTP
Basic Event 159 - Incorrect execution or failure of software acquired from an external party crashes WTP control system
Basic Event 77 - External person adds substance to WTP coagulant storage tank
Name
External supplier