Utility Substation (2 of 2) (IMAGE) Georgia Institute of Technology Caption Georgia Tech researchers have developed a device fingerprinting technique that could improve the security of the electrical grid and other industrial systems. The system would be used in electrical substations like this one. Credit Credit: Fitrah Hamid, Georgia Tech 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.