P-10761-27_small (IMAGE) DOE/Idaho National Laboratory Caption To demonstrate the ability of the Constrained Cyber Communication device to block a cyberattack on the power grid, researchers constructed a 36-foot long mobile substation and connected it to INL's full-scale Power Grid Test Bed. Credit Chris Morgan, Idaho National Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.