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# PHAssetCollectionSubtype.smartAlbumAllHidden

A Smart Album that groups all assets hidden from the Moments view in the Photos app.

```
case smartAlbumAllHidden
```

## Discussion

Hidden assets have an [`isHidden`](/documentation/Photos/PHAsset/isHidden) value of `true` and the system doesn’t return them through a fetch request, by default. Hide or show an asset by setting the [`isHidden`](/documentation/Photos/PHAssetChangeRequest/isHidden) property of a [`PHAssetChangeRequest`](/documentation/Photos/PHAssetChangeRequest) object.

Beginning with iOS 16, users can require authentication to view the hidden Smart Album, and the user setting is `true` by default. When `true`, the system returns an empty Smart Album.

---

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