Signal’s disappearing-message timer deletes messages in the chat. Your screenshots are separate pictures, and they stay in Photos until you delete them.
The timer only reaches the chat
According to Signal, a disappearing message is deleted for the sender and for the recipients when the timer ends. Signal also says the feature is not for cases where the other person is your adversary. That person can photograph the screen before the message goes.
A screenshot is a normal photo file. The timer does not know about it. With iCloud Photos on, it also appears on your other devices with the same Apple Account. A delete on one device applies to all of them.
Find what you saved
Open Photos, tap Collections, and look under Media Types for Screenshots. Then look through the pictures you saved from the chat by hand. Scroll back to the day the chat started.
Keep only what you need. Each copy outlives the message that the timer removed, so a short list is better than a long one. Then think about who else opens Photos. Anyone with your unlocked phone sees everything in it.
Keep the few you need in Vault9
- Import those screenshots and pictures from Photos.
- Open them in Vault9 to check that they are there.
- Delete the originals in Photos yourself.
- Open Recently Deleted in Photos and delete the items there too. Photos keeps deleted items for 30 days.
Vault9 has no Recently Deleted of its own. When you delete an item there, the app asks you to confirm and deletes it for good. So check the item before you delete it. More on this step: keep screenshots private on iPhone.
What this does not fix
Vault9 does not stop anyone from taking a screenshot of a chat. It stores the copies that you import. Copies you sent to other people, or saved in other apps, stay where they are.
Vault9 also does not protect a vault that is open on an unlocked phone. It has no decoy or duress mode, and a person who makes you unlock it can open it. We cannot reset your pattern or passphrase, and we cannot open the vault for you. Write them on your Emergency Kit and keep the kit safe.
Sources
- Signal blog: Embrace ephemerality with default disappearing messages (checked 2026-11-06)
- Apple Support: Take a screenshot on iPhone (checked 2026-11-06)
- Apple Support: Set up and use iCloud Photos (checked 2026-11-06)
