Can I suggest we find a way to provide these through the environment rather than embed them in the tests? It's just that even if they are encrypted, we don't want them out in the public. We should reset the API keys for these accounts when we've moved them out.

My suggestion would be to use a separate config file "FunctionalTests.private.config" that is EXCLUDED by the gitignore file, OR Environment Variables and have the unit tests manually configure NuGet to use the source data from there.