These photos are still on your phone though, just in the Hidden album.

Heres how to lock hidden photos on your iPhone:

Open configs and tapPhotos.

Tap theUse Face IDorUse Touch IDtoggle to turn it on.

Photos, Use Touch ID, and Show Hidden Album highlighted in iOS Photos settings

Optionally, you could also tap theShow Hidden Albumtoggle to turn it off.

Look forlock iconsnext to Hidden and Recently Deleted under Utilities.

To view your hidden photos, tapHidden.

TapView Album, and then use Touch ID or Face ID to unlock the folder.

Why Lock Photos on an iPhone?

The Hidden album also fails to protect your hidden images in other ways.

When this feature is turned on, it locks your Hidden album behind either Face ID or Touch ID.

If someone tries to enter the Hidden album without your permission, they are greeted with a blank folder.

This feature also locks down your recently deleted images in the same way.

This does not delete the photos, only the album.

The photos remain in the All Photos album.

Choose an existing album or tapNew Album.

Turn on iPhone Shared Albumsto create albums that you share with other people.