I was somehow surprised as a friend of mine demonstrated to login into my SmartSolar with the default pin 000000 - I directly changed the password (which was not set to default) to a new password - but still he was able to login.
The app on ios confirms the password change - it even confirms that the old password / pin is not set to default.
Firmware SmartSolar MPPT 100/20 is v1.39
Firmware VictronConnect on IOS is v5.7
Any hint or idea is welcome