Prioritize user privacy and data security in your app. Discuss best practices for data handling, user consent, and security measures to protect user information.

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Email is not included in id_token
We have a game that provides a mechanism to log into the game with Sign in with Apple in a direct integration between the game and Apple (first mechanism). We also provide a mechanism to log into the game using OpenID connect with authorization from Apple but using a server in the middle that drives the process (second mechanism). It is important to mention that both mechanisms use the same oauth client. We have been able to switch from the first mechanism to the second successfully, but there is a problem with id_token. In the second mechanism we request the scopes "email", "openid" and "name", but in the retrieved id_token there is no information about the email. It happens for all users who previously signed in with Apple using the first mechanism (therefore there is a current link between the game and the user in AppleId). It does not happen with users who had no link between the game and the user and use the second mechanism, in this case we can retrieve the user information in the callback of the first call and the email in the id_token, as stated in the documentation. However, if users who had a link between the game and the AppleId delete the app and then log back in using the second mechanism, then we can get the email information with the exact same request. The request we use to obtain the authorized endpoint information (https://appleid.apple.com/auth/authorize) has these parameters: response_mode: query scope: email openid profile nonce: ... state: ... response_type: code Then we get the authentication code and get an id_token like this: { "iss":"https://appleid.apple.com", "aud":"{aud}", "exp":1705584621, "iat":1705498221, "sub":"{sub}", "nonce":"7f-PqBoXgxeDMOEu5Ysov0FjE9GvSYfq", "at_hash":"3kLcPBlwZP6aj_mscww5zA", "authentication_time":1705498218, "nonce_supported":true } Is there a way to retrieve the email for users who had the link and don't want to delete it or log back into the app? In the official Apple documentation it is stated that the id_token should have the email but this is not the case. https://developer.apple.com/documentation/sign_in_with_apple/sign_in_with_apple_rest_api/authenticating_users_with_sign_in_with_apple#3383773
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1.3k
Feb ’24
Sign in with Apple REST API
Apple documentation is specific about the possible types of email_verified property A string or Boolean value that indicates whether the service verifies the email. The value can either be a string ("true" or "false") or a Boolean (true or false). The system may not verify email addresses for Sign in with Apple at Work & School users, and this claim is "false" or false for those users. Actually we made a mistake by supporting only String type and today had the very bad surprise to notice that we started receiving Bool types for the first time. Do you have any info about changes on the API ? Thanks Julien
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1.1k
Feb ’24
Configured Apple Sign Relay but not receiving emails
I'm following the steps outlined to be able to email users that have used Apple Sign-in that is listed here and I have a green check for SPF status. I used my email <my_email_here>@gmail.com, but when I try to send an email from the email address configured to the private relay email I don't see my test email coming through. I also tried sending an email from a non configured email and I don't back any sort of error message, not sure if I should though. Is there a delay in how quickly the email is received?
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705
Feb ’24
Even when calling the Apple Login Revoke API, the app still remains in the user's account.
Problem Situation User membership withdrawal request → revoke API call It always returns status code 200, but once out of 5~10, it remains an app linked to the user's Apple ID. Re-request user Apple login → Email is returned as null Currently, the only solution is for users to manually delete apps linked to their Apple ID. Email sent when re-requesting Apple login When the above problem occurs, even if the Revoke API is called multiple times, the app linked to the user's Apple ID is not deleted, and when requesting Refresh Token validation, it has already expired. Releated Issues https://forums.developer.apple.com/forums/thread/707181
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826
Feb ’24
privacy manifest for static library framework
i have a code only static library framework and added PrivacyInfo.xcprivacy file inside. because there are no resources required in runtime, app using that framework can build without embedding. finally there are no PrivacyInfo.xcprivacy file in app bundle. is this correct intended operation? some steps to propagate and merge static framework's privacy manifest to app's privacy manifest not needed?
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2.9k
Feb ’24
The application is in inactive state after pressing the power button to lock the screen when using passkey
I am creating an app using flutter. When the application displays the passkey authentication dialog box, after the face id authentication is complete (the authentication dialog box has not yet closed), I press the power button to lock the screen. After that, when I unlock the screen, my application is still displayed but it is in inactive state. This means the interface is still visible but the user cannot interact.
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521
Feb ’24
Web Credentials aren't being recognized even though the AASA file is configured correctly
We have an App that displays a WKWebWiew. The page being loaded in the WebView loads a snippet with a button that when clicked, initiates WebAuthN Flow. The App throws he following [WebAuthn] Request cancelled after error: The operation couldn’t be completed. Application with identifier 123ABCDEF4.com.exmaple.app.staging is not associated with domain example.co.za. In the above quote, 123ABCDEF4 would represent the TeamID, com.exmaple.app.staging is the bundle identifier and example.co.za is the main/root domain while the WKWebView actually loads a URL at staging.example.co.za. in Xcode, the App's Associated Domains contains the following webcredentials:staging.example.co.za The AASA file hosted at https://staging.example.co.za/.well-known/apple-app-site-association returns the following { "applinks": { "details": [ { "appIDs": [ "123ABCDEF4.com.example.app", "123ABCDEF4.com.example.app.staging" ], "paths": [ "*" ] } ] }, "webcredentials": { "apps": [ "123ABCDEF4.com.example.app", "123ABCDEF4.com.example.app.staging" ] }, "appclips": { "apps": [] } } May you kindly advise what we may be doing wrong? The message being thrown refers to the fact that the Staging app is not associated with the root/main domain. If it's any consolation, we've updated both example.co.za and staging.exmaple.co.za to return the exact same AASA file where they both registers both Prod & Staging AppIds
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1.8k
Feb ’24
Conditions under which a JWT client token expires
In order to use Sign in with Apple, I issued a JWT client according to the instructions and was able to connect without any problems, but suddenly an INVALID_CLIENT error started to occur. The error was resolved by re-obtaining the JWT client token and resetting it. The validity period of the JWT client token is 6 months and it has not expired yet, but I would like to know why I am getting an INVALID_CLIENT error.
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467
Mar ’24
I'm trying to incorporate Sign-In with Apple for my Swift Application
I am getting an error "Cannot create a iOS App Development provisioning profile for "TheSwiftUIWay.login". Personal development teams, including "Cyril John", do not support the Sign in with Apple capability" I have created a developer account but I didnt enroll in the developer program. Am I able to use Sign-In with Apple with the free version of the Apple Developer Account? If so, can you please give me some directions on how I can fix this error?
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792
Mar ’24
AppAttest attestKey returns invalid key error
Dear Experts, I have App Attest deployed in an app that is currently in TestFlight. Its works OK most of the time. For one particular user, however, attestKey fails with DCErrorInvalidKey for a new key that it has just created. I have some insight into what the app is doing because I send diagnostics to the server. It seems that for this user, the sequence of events is: Initially the app has no key ID saved. The user initiates an action that requires App Attest-signed communication with my server. The app calls generateKey which seems to succeed. The app fetches a challenge from the server. The app calls attestKey. attestKey returns DCErrorInvalidKey. The app doesn't save the key ID persistently, so next time the same thing happens. attestKey really shouldn't fail with the invalid key error for a key that it has just created, should it? What could be going on here?
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1.9k
Mar ’24
Purposely trigger XProtect detectors?
I have an Endpoint system extension that, in theory, receives XProtect alerts. I regularly see XProtectPluginService starting programs like XProtecteRemediatorSheepSwap on my Mac. I would love to be able to put one or more files/bundles on my Mac that triggers the detectors, so I can see the alerts go from the Endpoint system extension through to the UI. Does Apple have or recommend a way (short of being infected) for triggering the XProtect detectors for testing?
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1k
Mar ’24
Support on Apple Privacy Manifest
As per the https://developer.apple.com/documentation/bundleresources/privacy_manifest_files/describing_data_use_in_privacy_manifests Mentions that Third-party SDKs need to provide their own privacy manifest files. What about the SDKs which are in-house? Meaning if the application contains the SDKs which are developer within the same company as the application would be treated as Third-party SDKs?
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731
Mar ’24
Keychain ACLs and evaluatedPolicyDomainState
If on iOS an app protects a keychain item with an access control list that specifies .biometryCurrentSet in its SecAccessControlCreateFlags the app loses access to the item if the set of currently enrolled fingers (for Touch ID) or the currently enrolled user (for Face ID) changes - which corresponds to a change of the evaluatedPolicyDomainState. We have users reporting loss of such items even though - as they assure us - they have not touched (no pun intended) anything under "[Touch|Face] ID & Code" in Preferences.app. Is there another reason why an app may lose access to such items?
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520
Mar ’24