What is the best way to "lock" a flight controller?

Good afternoon,

My goal is to prevent unauthorized access to our cube orange plus so that someone would have to enter a password either to connect to it serially or remotely. Is this something doable within the current framework of PX4? Would MAVLink message signing accomplish this?

Does anyone have any recommendations / insights?

Hi @jnomikos, did you find any solution for this, I also want to do the same.

Sorry for the late reply, did not see the notification.

I have not found a solution to this problem. There might be a way to disable serial connection via custom modification to the firmware, but that is outside my knowledge.

I have, however, been able to have flight logs encrypted