Power plants are increasingly monitoring equipment using internet-connected systems, but this connectivity also increases cybersecurity risks. A computer virus once infiltrated a US power plant network through an infected USB drive, shutting down the plant for three weeks. To address such risks, the US Federal Energy Regulatory Commission proposes strengthening cybersecurity standards for power grids, including expanding protections to more assets and implementing new security controls. However, many control systems still use outdated software and operating systems without adequate protection.