The utility switched to manual control after attackers gained remote access July 27; officials said water service, water quality and customer data were unaffected.
The incident disrupted phone communications with the borough’s water system and forced employees to reactivate it manually, but officials said water service continued and drinking water remained safe.
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.
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.
Officials said the attempt was detected quickly and did not jeopardize water or wastewater systems; federal agencies warned of incidents in at least seven states.
The city said water remained safe as crews used manual procedures after communications failed at two water towers and multiple wastewater lift stations.