iOS Encrypting Core Data database

Question

I have a Core Data database with a lot of sensitive information, so I like to encrypt it.

Almost all information about encrypting Core Data databases seem to be quite outdated:

• Creating the persistent store coordinator with NSFileProtectionComplete. But copying the files off the device with iTunes or Xcode decrypts the database (https://stackoverflow.com/a/30823240/8837882). And the database seems to get decrypted as soon as device is unlocked, no matter if the app is running or not.

• Encrypting database with https://github.com/project-imas/encrypted-core-data. The last commit is from 2017.

So I'd like to ask if this recommendations are still up to date or if there are better ones at the end of 2020?