The short answer
Yes. With iCloud Photos on, a photo you hide on one device is hidden on your other devices too. So the Hidden album exists on every device that uses your Apple Account.
Anyone who can unlock the album on one of those devices can open it.
Three kinds of people can reach a hidden photo
Hiding moves a photo out of your Library and your other albums. It stays in iCloud Photos.
- Someone who knows your passcode. Apple says the Hidden album opens with Face ID, Touch ID or the passcode.
- Someone signed in to your Apple Account on another device. On a Mac, the album opens with Touch ID or the login password. It is off by default there, but that person can turn it on.
- Apple, with the default settings. Your photos are encrypted in transit and on Apple’s servers, and Apple stores the keys. Apple can still see that a photo is marked hidden, even with Advanced Data Protection on, because that metadata stays under standard protection. Can Apple see your hidden photos has the details.
Check your Apple Account in 3 steps
- Keep your passcode and Apple Account sign-in to yourself.
- Look at the devices signed in to your Apple Account. Remove any you do not know.
- Think about Advanced Data Protection. Open Settings, tap your name, tap iCloud, scroll down, then tap Advanced Data Protection.
It needs iOS 16.2 or later, and current software on every signed-in device. Apple cannot help you recover this data, so set up a recovery contact or a recovery key first. We would not turn it on before that.
What a Hidden album cannot do
It has no key of its own. A person who knows your passcode gets in, and the photo still syncs. A photo that must do neither has to leave the Photos library.
How the vault differs
Vault9 encrypts each photo on your iPhone before it stores it. The vault opens with your pattern or passphrase and your Secret Key, or Face ID, if you turn it on. After you import a photo, delete the original in Photos yourself, then delete it from Recently Deleted, where Apple keeps it for 30 days.
The vault has an iCloud backup in your own iCloud storage. It never contains your Secret Key. Apple can see that the backup exists, the number of items, their padded sizes, the dates of changes and the model of the active iPhone.
Vault9 does not protect a vault on an unlocked phone that someone else holds. It cannot reset your pattern or passphrase either, so keep your Emergency Kit safe.
Common questions
Can Vault9 see my photos?
No. Vault9 never receives your photos or your keys. There is no Vault9 account and there are no Vault9 servers.
Is the vault in my iPhone backup?
No. The app keeps the vault out of the iPhone backup and out of Quick Start. The vault has its own iCloud backup, which does not contain the Secret Key.
Sources
- Apple Support: Hide photos on your iPhone, iPad, Mac, or Apple Vision Pro with the Hidden album (checked 2026-11-06)
- Apple Support: Hide photos and videos on Apple devices (checked 2026-11-06)
- Apple Support: iCloud data security overview (checked 2026-11-06)
- Apple Support: How to turn on Advanced Data Protection for iCloud (checked 2026-11-06)
- Apple Support: Delete photos on your iPhone or iPad (checked 2026-11-06)
