Remote maintenance: MGuard
For remote maintenance a VPN tunnel is set up using mGuard security software from Innominate. We are very careful to ensure that the VPN tunnel is activated solely from the production unit to the EME service technician. The hardware firewall continues to protect the workstation from viruses and hacking attacks. The firewall permits read-only access to export files in the SCADA computer. These export files contain consumption data and archives in formats that can be imported into the customer ERP system. The customer normally automates the export of this data through the mGuard firewall.