Data feeds port forwarding security

I have recently setup a second Piaware which I have set up at another location. I would like to combine the live feed maps as well as feed to Flightaware.

I have successfully managed to setup the map using Virtual radar and combine both the feeds into one map.

The only thing that is playing on my mind is if it is safe to be port forwarding ports 30003 and 30106 for the data feeds from the PI. Is the Piaware software secure enough to prevent any attacks to it from these ports and is it Ok to open these ports to the web?

Thanks in advance!

IMO, It would be best if you setup a VPN tunnel.