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Gate: Gate 239
Description
Mislead PLC controlled WDN tank refill process
Events
Basic Event 235 - External person in situ manipulates WDN tank level sensor
Basic Event 236 - Man-in-the-Middle attack manipulates WDN tank level sensor signals
Basic Event 237 - Malware alters PLC statements that control WDN tank refill
Basic Event 238 - External person in situ manipulates WDN tank transmission system
Basic Event 239 - Subcontractor physically disconnects local PLC
Name
Gate 239
fault tree
STOP-IT Quantity FT
asset type
Control System
event type
Manipulation
operator
or