Officials said the July 27 incident disrupted parts of the water system’s computer network but did not affect drinking water safety or service, and no customer data was compromised.
A programmable logic controller in the utility’s automated control system was targeted July 27, but manual operations kept water service running and the utility said the public supply was never in danger.
Technology systems remain unavailable across the Fort Worth health network, forcing manual procedures and delaying records responses as the cause remains undisclosed.
County officials said all government systems were offline Thursday, while 911 remained operational and the circuit court clerk reported its phone lines were down.
The tribe is using temporary phone lines for health care, education, transit and social services while outside experts investigate and restore systems.
The state ports authority contained the breach but continued recovery work after delays and manual gate processing at facilities in Wilmington, Morehead City and Charlotte.
A truck driver spotted pumps running dry while the control system showed normal operation, prompting workers to switch the facility to manual operation before damage occurred.
The university took some computer systems offline after reporting a network disruption but has not confirmed the cause or disclosed a recovery timeline.