I noticed that it is possible to access “Public” folder on the storage using a local IP address of the storage. (I don’t know why it is called “public” it is not accessible through the cloud dashboard, but whatever) Firstly it asked me for a password, I found that admin admin works.
The public folder is a traditional SMB public share that is there to be used with Windows File history. There is no way to change or modify the password for this share.