Final answer:
A control system was infected with a virus from a thumb drive used on computers, illustrating the need for cybersecurity in infrastructure with technologies like NASA's EWT and the ConnectIo product being susceptible to similar risks.
Step-by-step explanation:
The OE (operational event) referenced involves a digital EHC (Electronic Hydraulic Control) turbine control system becoming infected with a virus. The virus was transferred through a portable thumb drive that had been used on both a laptop and a desktop computer. This situation highlights the risks associated with removable media and the importance of cybersecurity measures in protecting critical infrastructure. While not directly related to this OE, it's worth noting that Internet-connected technology can also pose security risks. This is demonstrated through applications of Embedded Web Technology (EWT), such as NASA's EWT software used by astronauts and commercial applications like the ConnectIo intelligent oven product developed by TMIO LLC. All interconnected devices must be safeguarded against unauthorized access and cyber threats.