A researcher specializing in smart grids has released an open-source tool designed to assess the security of smart meters. Dubbed ‘Termineter,’ the framework would allow users, such as grid operators and administrators, to test smart meters for vulnerabilities. Termineter uses the serial port connection that interacts with the meter’s optical infrared interface to give the user access to the smart meter’s inner workings. By modifying consumption data, a hacker can inflict financial loss on the provider, but will also invalidate data related to demand.
Source: https://thehackernews.com/2012/07/open-source-smart-meter-hacking.html