The macOS firewall App called Little Snitch allow third party software developers to configure an Internet Access Policy.
The purpose of this is to give Little Snitch an opportunity to display a precise description of Internet connection a third party software do.
In our case, Little Snitch would display a text explaining why Photolab or Viewpoint or Filmpack or NIK connect to the Internet, for example to check updates, send statistics or for the licenses.
For this purpose, DxO need to prepare two files and it is already done.
And never ever a Little Snitch user will ask you why DxO establish a connection
Old topic on the forum - Here you see the firewall warning, without any description because there is no Internet Access Policy.