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OT-OPCUA-NO-AUTHInitial Access
OPC UA / OPC Classic No-Auth
Mis-configured OPC UA endpoint accepts anonymous binding — read / write tags, browse the address space.
§ Where this technique fits
OT-OPCUA-NO-AUTH is catalogued under the Initial Access tactic of the offensive-security kill-chain. It appears in 0 approved dossiers in the registry, typically.