If QRVault is deactivated (the step before being fully backgrounded) it does not clear its screen first, resulting in possible leakage of secure information upon returning to the app. As you can see in these examples, the QR code that was last displayed is still fully visible on returning to the app, regardless of whether the user logs in using Sign In with Apple:
Wickr is an example of an app that clears its screen when being deactivated.
If QRVault is deactivated (the step before being fully backgrounded) it does not clear its screen first, resulting in possible leakage of secure information upon returning to the app. As you can see in these examples, the QR code that was last displayed is still fully visible on returning to the app, regardless of whether the user logs in using Sign In with Apple:
Wickr is an example of an app that clears its screen when being deactivated.