I'm currently looking at an .apk for Android and I came across some hard-coded credentials. Apparently these are used for something called
FireBaseAuth, which seems to be a Google service.
I'm not very familiar with the Android app development and don't know what the FireBase service is exactly used for.
Is it common to save hard-coded credentials for the service in the app?
What can be done with the credentials?
The credentials do not reflect any information affiliated with me.
edit: I did come across this stackoverflow post, stating something about identifiers, but no clear answer.