Possible vulnerability in the transfer of data

[JohnnyConstantin]

Hello
It looks like you are using the MQTT protocol to transmit location data. I found publish messages in the public mosquitto broker, which contains the topic "digitransit" with the latitude and longitude of your clients I guess. Google led me to your project. Moreover, a huge number of coords are located in the Helsinki city area, which is your primary location. There is a way to change the incoming data, so that the server will get the wrong coordinates and will not be able to build a route. So, if I'm right, and open information about the location of your customers was not part of your plans, you can contact me bettercall02@protonmail.com, I'll provide you screenshots, and explain the issue deeper.
P.S. Maybe this is test data, but I thought it would be better to report a possible problem