Recommendations for Protecting Access Through NFC (MasterPacT MTZ)

Functions Accessible Through NFC

Through wireless near field communication (NFC), diagnostic data can be downloaded from a MicroLogic X or MicroLogic Active control unit to a smartphone, even when the control unit is not powered. It is not possible to change any settings on the control unit, nor to open, close, or reset the MasterPacT MTZ circuit breaker.

Prerequisites for Establishing an NFC Connection

To establish a wireless NFC connection with the MicroLogic X or MicroLogic Active control unit, the prerequisites are:

You must have physical access to the room where the MasterPacT MTZ circuit breaker is located, and to the equipment enclosure.
You must have EcoStruxure Power Device app installed on your smartphone.
The smartphone must support NFC.

Any person who meets these conditions can download data that may be confidential for your operation. In the MicroLogic X or MicroLogic Active control unit, there is no record of connections established through NFC.

For the detailed procedure on how to establish an NFC connection, refer to MicroLogic X or MicroLogic Active User Guide.

General Recommendations for Protecting Access Through NFC

To protect access to data accessible through wireless NFC, it is recommended to:

Install the MasterPacT MTZ circuit breaker in a locked area so that only authorized personnel can access the MicroLogic X or MicroLogic Active control unit.
Keep that area locked at all times.
Give the key or access code to authorized personnel only.

For further information, see the recommendations for restricting local access to the MasterPacT MTZ circuit breaker.

Recommendations for NFC Communication

To protect access to functions accessible through wireless NFC, it is recommended to:

Disconnect the smartphone from the Internet (for example, by setting it to flight mode) during an NFC connection with the MicroLogic X or MicroLogic Active control unit.
Do not enter a pairing code if prompted for it, because it is not required for an NFC connection.

Recommendations for Using EcoStruxure Power Device App

To restrict access to the MicroLogic X or MicroLogic Active control unit from a smartphone running EcoStruxure Power Device app, it is recommended to use only the official Schneider Electric EcoStruxure Power Device app to connect to the MasterPacT MTZ circuit breaker.

Recommendations for Using Smartphones

To restrict access to the MicroLogic X or MicroLogic Active control unit from a smartphone, it is recommended to:

Make sure that the smartphones that have the EcoStruxure Power Device app are password protected and used for work only.
Harden the smartphones that have the EcoStruxure Power Device app by implementing all of the security features recommended by the smartphone vendor or manufacturer.
Keep antivirus applications for smartphones up to date.
Do not disclose information about the smartphone (telephone number, MAC address) if it is not necessary.
Disconnect the smartphone from the Internet (for example, by setting it to flight mode) during an NFC connection with the MicroLogic X or MicroLogic Active control unit.
Do not store sensitive information on smartphones.