I’ve checked that there are some questions like mine. But the terminology seems to have changed and it’s been time, so I opened a new question.

Hi, I’m trying to add the ability to back up and record data to iCloud using CloudKit.

Here’s what I’m unsure about:

I understand that the ‘CloudKit Dashboard’ has ‘Security Roles’. I thought these were meant to set permissions for accessing and modifying users’ data, but I found there was no change even when I removed all ‘Permissions’ from ‘Default Roles’.

1. I’d like to know what _world, _icloud, and _creator in Default Roles mean respectively.

2. I would like to know what changes the creation, read, and write permissions make.

3. Is it better to just use the default settings?

Here’s what I understand so far:

Default Roles:

• _world: I don’t know
• _icloud: An account that is not my device but is linked to my iCloud
• _creator: My Device

(If I look it up, other people have ‘Authenticated’, but I have ‘icloud’.)

Permissions:

• create: Create data
• read: Read data
• write: Update and delete data.

I’m not sure if I understand this correctly.