The power grid is becoming increasingly complex due to the integration of municipal utilities, renewable energy resources, new substations and millions of smart grid edges like smart meters and EV-charging stations. The majority of this electric infrastructure is located far away from the central control room. Therefore, control is increasingly carried out digitally via remote access. To secure these peripheral systems, distribution and transmission system operators often rely exclusively on firewalls. These might reliably detect known malware. However, with several hundred of thousands of new malware variants each day, cybersecurity limited to identifying known signatures becomes highly unreliable.
