A private photo showed up on your lock screen or home screen

The phone lights up on the café table, and for a moment the picture on it isn’t the one you’d choose. It might be a widget cycling through memories, a wallpaper set to shuffle your photos, or a message preview with a photo attached. Lock screens and home screens are designed to be seen without unlocking, which is exactly why what appears there matters.

What to do now

Change the wallpaper. If your lock screen or home screen uses a personal photo, or a setting that rotates through photos, switch it to something neutral. Long-press the home screen and choose Wallpaper, or find it in Settings, then Wallpaper.

Remove photo and memory widgets. Long-press the widget on your home screen or lock screen and choose Remove. If you like the widget, edit it to show one chosen album or person instead of your whole library.

Hide sensitive notifications on the lock screen. On Android, open Settings, then Notifications, then the lock screen setting (sometimes Notifications on lock screen or Privacy). Choose to hide sensitive content, or show only that a notification arrived. Settings vary by phone. On iPhone, set Show Previews to When Unlocked under Settings, then Notifications.

Hide dates and people from memories. Widgets often draw from memories. Hiding a person or a date in your gallery app stops them being featured anywhere. Steps are in hide photos from memories on Android.

Check always-on displays and screen savers. Some phones show photos on an always-on display or while charging. Search Settings for “screen saver” or “always on” and pick a clock or a plain screen.

Check connected screens. Smart displays, TVs and digital frames linked to your photo account may rotate through your albums. Remove private photos from the albums they use.

Look at it as a stranger would. Lock the phone, put it on the table and wake it without unlocking. Then unlock and look at the home screen. Whatever you see in those two glances is what a colleague, a child or someone on the bus can see too.

What doesn’t help

• Deleting the one photo you saw. The widget or wallpaper will pick another. Fix the setting, not just the photo.
• Turning the phone face down. It works until you forget, or someone else picks it up.
• Hiding photos from the grid only. Some widgets and screen savers still draw from albums you’ve hidden from view. Check what each one uses.
• A lock screen PIN. The point of a lock screen is that it’s visible before the PIN. A PIN doesn’t hide what’s on it.

The underlying problem

Wallpapers, widgets, memories and screen savers all use the same source: your photo library. As long as private photos are in it, any feature that picks from it might show them, now or in a year when a new feature arrives. The lasting fix is to keep private photos out of the library entirely: in a locked folder, in private space, or in a vault app.

If a photo you’d rather not share showed up during a call rather than on the lock screen, see sharing your screen on a video call.

Where a vault helps

Silo, coming soon to iPhone and Android, imports chosen photos into an encrypted vault and, once each copy is checked, removes the originals from your gallery. Photos inside Silo can’t be chosen by wallpapers, widgets, memories or screen savers, and Silo shows a cover instead of your photo in the app switcher.