https://www.vice.com/en_us/article/dyvpyw/everything-you-need-to-know-about-the-pipeline-hack

Colonial Pipeline, a company that runs a 5,500 mile-long gas conduit that serves the eastern seaboard of the U.S., announced last weekend that it had been the victim of a ransomware attack.

As a precaution the company shut down the pipeline, despite the fact that the cyberattack only affected its enterprise IT network, not the network responsible for controlling the pipeline. The ransomware attack and the panic buying that followed caused gas shortages across several states.