Traditional control systems are being upgraded with novel computing, communication and interconnection capabilities. This opens new threats that must be handled both in terms of security and safety. The recently coined cyber-physical defense term has come to address such a challenge. In this context, we are currently preparing some SCADA testbeds using Lego Mindstorms EV3 bricks and Raspberry Pi boards. The testbeds aim at validating the security of existing SCADA protocols, such as the Modbus, DNP3, and IEC 104 protocols.
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