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

All subtopics
Posts under Privacy & Security topic

Post

Replies

Boosts

Views

Activity

Is “webcredentials” required for HTTPS callbacks in ASWebAuthenticationSession?
Hello, When using ASWebAuthenticationSession with an HTTPS callback URL (Universal Link), I receive the following error: Authorization error: The operation couldn't be completed. Application with identifier jp.xxxx.yyyy.dev is not associated with domain xxxx-example.go.link. Using HTTPS callbacks requires Associated Domains using the webcredentials service type for xxxx-example.go.link. I checked Apple’s official documentation but couldn’t find any clear statement that webcredentials is required when using HTTPS callbacks in ASWebAuthenticationSession. What I’d like to confirm: Is webcredentials officially required when using HTTPS as a callback URL with ASWebAuthenticationSession? If so, is there any official documentation or technical note that states this requirement? Environment iOS 18.6.2 Xcode 16.4 Any clarification or official references would be greatly appreciated. Thank you.
2
0
214
Nov ’25
Transfer an application between accounts with an existing App Group
Due to business requirements, we need to transfer our app Gem Space for iOS from our current Apple Developer account to a new account. We have a major concern regarding our users and the data associated with the app. The user data is currently stored using an App Group with the identifier, for example: "group.com.app.sharedData" According to some information we’ve found, it might be possible to complete the transfer by removing the App Group from the old account and creating a new one with the same identifier in the new account. However, other sources suggest that App Group containers are owned by the specific team, and data stored in the container may become inaccessible after the app is transferred to a different team. This raises concerns about the possibility of users losing access to their data after updating the app from the new account. Could you please clarify the expected behavior of App Groups in this case? Do we need to perform any kind of data migration, and if so, could you please provide detailed guidance on how to do it safely and without impacting user data access?
2
0
88
Apr ’25
Authorization Plugin code signing issue
Hi. We're writing Authorization Plugin and started with NullAuthPlugin compilation. When tried to run it on VM (Sonoma 14.6, SIP enabled), we're going into the following issue: `2025-03-08 13:38:20.699503-0800 0xdcb0 Error 0x0 0 0 kernel: (AppleMobileFileIntegrity) [com.apple.MobileFileIntegrity:library_validation_failure] Library Validation failed: Rejecting '/Library/Security/SecurityAgentPlugins/NullAuthPlugin.bundle/Contents/MacOS/NullAuthPlugin' (Team ID: ABCD12EF34, platform: no) for process 'SecurityAgentHel(2094)' (Team ID: N/A, platform: yes), reason: mapping process is a platform binary, but mapped file is not' As I understand, the platform binary is the one signed with Apple signature, which indeed is unavailable for us. How can we avoid this issue and run the plugin? Perhaps we're missing some build setting requirement?
2
0
360
Mar ’25
SFCertificateView Memory Leak
I've been spending days trying to solve the memory leak in a small menu bar application I've wrote (SC Menu). I've used Instruments which shows the leaks and memory graph which shows unreleased allocations. This occurs when someone views a certificate on the smartcard. Basically it opens a new window and displays the certificate, the same way Keychain Access displays a certificate. Whenever I create an SFCertificateView instance and set setDetailsDisclosed(true) - a memory leak happens. Instruments highlights that line. import Cocoa import SecurityInterface class ViewCertsViewController: NSViewController { var selectedCert: SecIdentity? = nil override func viewDidLoad() { super.viewDidLoad() self.view = NSView(frame: NSRect(x: 0, y: 0, width: 500, height: 500)) self.view.wantsLayer = true var secRef: SecCertificate? = nil guard let selectedCert else { return } let certRefErr = SecIdentityCopyCertificate(selectedCert, &secRef) if certRefErr != errSecSuccess { os_log("Error getting certificate from identity: %{public}@", log: OSLog.default, type: .error, String(describing: certRefErr)) return } let scrollView = NSScrollView() scrollView.translatesAutoresizingMaskIntoConstraints = false scrollView.borderType = .lineBorder scrollView.hasHorizontalScroller = true scrollView.hasVerticalScroller = true let certView = SFCertificateView() guard let secRef = secRef else { return } certView.setCertificate(secRef) certView.setDetailsDisclosed(true) certView.setDisplayTrust(true) certView.setEditableTrust(true) certView.setDisplayDetails(true) certView.setPolicies(SecPolicyCreateBasicX509()) certView.translatesAutoresizingMaskIntoConstraints = false scrollView.documentView = certView view.addSubview(scrollView) // Layout constraints NSLayoutConstraint.activate([ scrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor), scrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor), scrollView.topAnchor.constraint(equalTo: view.topAnchor), scrollView.bottomAnchor.constraint(equalTo: view.bottomAnchor), // Provide certificate view a width and height constraint certView.widthAnchor.constraint(equalTo: scrollView.widthAnchor), certView.heightAnchor.constraint(greaterThanOrEqualToConstant: 500) ]) } } https://github.com/boberito/sc_menu/blob/dev_2.0/smartcard_menu/ViewCertsViewController.swift Fairly simple.
2
0
428
Oct ’25
Japanese Katakana and Sign up With Apple
We have an app that has failed during the app review for the Japanese market but has been accepted in several other markets successfully. We need the user's name in native Katakana format as we need it to be displayed in our restaurant Point of Sale systems for workers to be able to read and understand. We use 'Sign up with Apple', but when doing so, if this returns an anglicised given and family name, we have to request the customer supply their Katakana format name so that our in-store systems and staff can process and fulfil their orders. When the App Review process automatically tests the app, it uses "Apple John" as a customer's name. Since this is not a Japanese name, we ask for it again in the correct format, or we cannot allow the user to register. This contravenes Apple's rules, and thus, our app is rejected. If the Apple identity used belonged to a user more typical of the target market, it would work as required. Does anyone else have this issue, and how did you work around it? Tim
2
0
391
Feb ’25
Passkey authentication problem in some areas in mainland China
Hi team, We are experiencing an issue where some users in China are unable to create passkeys due to authentication errors. This is the UI flows The method we use to prompt users is passkey creation. Technically, this is implemented using Apple’s AuthenticationServices framework. We create an instance of ASAuthorizationController and conform to ASAuthorizationControllerDelegate to handle the results of the authentication attempt. In failure cases, we receive ASAuthorizationError.failed (code 1004), along with some additional details describing the nature of the failure. However, we are currently unable to determine the exact root cause of this issue or how to resolve it. At this point, we can only make assumptions based on the limited error information provided. Our current hypothesis is that due to network restrictions, Apple may be unable to reach the .well-known endpoint where we host the associated domain file. Alternatively, even if the file is successfully loaded and cached to Apple’s CDN, the system in China may not be able to reach the CDN itself. We would greatly appreciate it if you could help us understand what might be causing this problem and guide us on how we can resolve it effectively. Thanks, Hung
2
0
123
May ’25
Custom Authorization Plugin in Login Flow
What Has Been Implemented Replaced the default loginwindow:login with a custom authorization plugin. The plugin: Performs primary OTP authentication. Displays a custom password prompt. Validates the password using Open Directory (OD) APIs. Next Scenario was handling password change Password change is simulated via: sudo pwpolicy -u robo -setpolicy "newPasswordRequired=1" On next login: Plugin retrieves the old password. OD API returns kODErrorCredentialsPasswordChangeRequired. Triggers a custom change password window to collect and set new password. Issue Observed : After changing password: The user’s login keychain resets. Custom entries under the login keychain are removed. We have tried few solutions Using API, SecKeychainChangePassword(...) Using CLI, security set-keychain-password -o oldpwd -p newpwd ~/Library/Keychains/login.keychain-db These approaches appear to successfully change the keychain password, but: On launching Keychain Access, two password prompts appear, after authentication, Keychain Access window doesn't appear (no app visibility). Question: Is there a reliable way (API or CLI) to reset or update the user’s login keychain password from within the custom authorization plugin, so: The keychain is not reset or lost. Keychain Access works normally post-login. The password update experience is seamless. Thank you for your help and I appreciate your time and consideration
2
0
173
Jun ’25
prepareInterfaceToProvideCredential .oneTimeCode case is not called
Since release of 18.4. prepareInterfaceToProvideCredential .oneTimeCode case is not called and instead prepareInterfaceForUserChoosingTextToInsert() is called. That is the wrong delegate for this case and it causes confusion for the users. Also, some TOTP fields are recognised however, the key icon button is not presented above the keyboard next to TOTP suggestions. I've also tested 18.5 and it has the same issue. provideOneTimeCodeWithoutUserInteraction works just fine.
2
1
127
May ’25
Apple Sign In "Sign up not completed" Error
Apple Sign In - "Sign up not completed" Error in Development Build (React Native / Expo) Problem Summary I'm implementing Apple Sign In in a React Native app using expo-apple-authentication. The Apple sign-in dialog appears as expected, but after tapping "Continue," it displays the message: "Sign up not completed". No credential is returned, and the promise eventually rejects with ERR_REQUEST_CANCELED. App Configuration Platform: React Native (Expo SDK 52) Library: expo-apple-authentication v7.1.3 Target: iOS development build (not Expo Go) Bundle ID: com.example.appname.nativetest (new App ID created for testing) Apple Developer Console Setup (Reviewed Carefully) App ID Explicit App ID (not a wildcard) "Sign In with Apple" capability enabled No associated Services IDs or Sign In with Apple Keys Provisioning Profile Development profile created for the test App ID Profile includes the test device and development certificate Installed successfully and used to sign the app Certificates and Signing Valid Apple Developer Program membership Development certificate installed and selected during build App installs and launches properly on the test device Implementation Attempts Attempt 1: Supabase OAuth Method Initially tried using Supabase’s built-in Apple OAuth provider: Configured with team ID, key ID, and JWT credentials Proper redirect URLs and scheme were in place Resulted in OAuth URL pointing to Supabase instead of Apple, with incomplete client ID Ultimately moved to native implementation for improved control and reliability Attempt 2: Native Apple Sign In (Current Approach) Using expo-apple-authentication with the following code: const credential = await AppleAuthentication.signInAsync({ requestedScopes: [ AppleAuthentication.AppleAuthenticationScope.FULL_NAME, AppleAuthentication.AppleAuthenticationScope.EMAIL, ], }); Relevant app.config.js Section: ios: { bundleIdentifier: 'com.example.appname.nativetest', usesAppleSignIn: true, infoPlist: { NSAppTransportSecurity: { NSAllowsArbitraryLoads: true, NSAllowsLocalNetworking: true, }, }, }, plugins: ['expo-apple-authentication'] Observed Behavior AppleAuthentication.isAvailableAsync() → true Credential state → NOT_FOUND (expected for new user) Apple Sign In dialog appears and allows interaction User taps "Continue" → dialog reports "Sign up not completed" Eventually returns: [Error: The user canceled the authorization attempt], code ERR_REQUEST_CANCELED Confirmed Working Aspects AppleAuthentication API is available and initialized App is signed correctly and launches on the physical test device Apple Sign In dialog appears with correct styling and options Same result observed across both Wi-Fi and cellular networks Clean Setup and Debugging Performed Removed all previous build artifacts Created a new App ID and new provisioning profile Rebuilt the app using expo run:ios --device Validated entitlements and provisioning assignments Removed any Services IDs and Apple Sign In keys used in previous attempts Verified ATS (App Transport Security) policies allow dev-time communication Environment Information Device: iPhone (not simulator) iOS Version: 18.5 Xcode: Latest version Apple ID: Developer account with 2FA enabled Build Method: EAS CLI using expo run:ios --device Open Questions Has anyone experienced the "Sign up not completed" issue with a clean native implementation in Expo? Are there known limitations when testing Apple Sign In in local development builds? Could prior Apple ID authorization attempts impact sign-in behavior during testing? Are there any additional configuration steps, Info.plist changes, or entitlements required beyond those listed above? Thank you in advance for any suggestions or guidance. We’re hoping this is simply a configuration detail that needs to be adjusted.
2
1
189
Jun ’25
Mobile apps and consent dialogue when logging in
We are using ASWebAuthenticationSession with apps on IoS to achieve SSO between apps. The IdP for authentication (OIDC) is an on-premise and trusted enterprise IdP based on one of the leading products in the market. Our problem is that the user is prompted for every login (and logouts) with a consent dialogue box: “AppName” wants to use “internal domain-name” to Sign In This allows the app and website to share information about you. Cancel Continue” I have read in various places that Apple has a concept of “Trusted domains” where you can put an “Apple certified” static web-page on the IdP. This page needs to contain specific metadata that iOS can verify. Once a user logs in successfully a few times, and if the IdP is verified as trusted, subsequent logins would not prompt the consent screen. Question: I struggle to find Apple documentation on how to go about a process that ends with this “Apple certified web-page” on our IdP”. Anyone who has experience with this process, or who can point me in some direction to find related documentation?
2
0
507
May ’25
Assistance in Implementing App Attestation
Hi, We're in the process of implementing Apple's App Integrity, but am getting stalled due to missing documents. Can anyone assist with this? We've been following https://developer.apple.com/documentation/devicecheck/validating-apps-that-connect-to-your-server to make the necessary updates, but have come up short with where the document references decoding the Attestation Object. Can we get more information here and how the decoding process work?
2
0
139
May ’25
ITMS-91061: Missing privacy manifest
I have these two pods: Frameworks/GTMSessionFetcher.framework/GTMSessionFetcher Frameworks/GoogleToolboxForMac.framework/GoogleToolboxForMac they are showing this error: ITMS-91061: Missing privacy manifest I've tried manually making privacy files, I've tried updating the SDK's too. I cant update them because firebase depends on GTM Session at a lower version and if I update, MLKit depends on toolbox (even though its deprecating) If I upgrade then the whole project explodes. What do I do. I need help. this is all I get and it doesn't help: https://developer.apple.com/support/third-party-SDK-requirements
2
4
4.2k
Feb ’25
How to request permission for System Audio Recording Only?
Hi community, I'm wondering how can I request the permission of "System Audio Recording Only" under the Privacy & Security -> Screen & System Audio Recording via swift? Did a bunch of search but didn't find good documentation on it. Tried another approach here https://github.com/insidegui/AudioCap/blob/main/AudioCap/ProcessTap/AudioRecordingPermission.swift which doesn't work very reliably.
2
0
719
May ’25
Question: Best Practice for Storing API Keys in iOS Apps (RevenueCat, PostHog, AWS Rekognition, etc.)
Hi everyone, I’m looking for clarification on best practices for storing API keys in an iOS app — for example, keys used with RevenueCat, PostHog, AWS Rekognition, barcode scanners, and similar third-party services. I understand that hard-coding API keys directly in the app’s source code is a bad idea, since they can be extracted from the binary. However, using a .plist file doesn’t seem secure either, as it’s still bundled with the app and can be inspected. I’m wondering: What are Apple’s recommended approaches for managing these kinds of keys? Does Xcode Cloud offer a built-in or best-practice method for securely injecting environment variables or secrets at build time? Would using an external service like AWS Secrets Manager or another server-side solution make sense for this use case? Any insights or examples of how others are handling this securely within Apple’s ecosystem would be greatly appreciated. Thanks for considering my questions! — Paul
2
0
471
Oct ’25
Multiple views in SFAuthorizationPluginView
Hi there, I'm trying to use SFAuthorizationPluginView in order to show some fields in the login screen, have the user click the arrow, then continue to show more fields as a second step of authentication. How can I accomplish this? Register multiple SecurityAgentPlugins each with their own mechanism and nib? Some how get MacOS to call my SFAuthorizationPluginView::view() and return a new view? Manually remove text boxes and put in new ones when button is pressed I don't believe 1 works, for the second mechanism ended up calling the first mechanism's view's view() Cheers, -Ken
2
0
134
May ’25
Proper Approach to Programmatically Determine SIP State
Hello, I have encountered several challenges related to System Integrity Protection (SIP) state detection and code signing requirements. I would like to seek clarification and guidance on the proper approach to programmatically determine the SIP state. Here are the issues I’ve encountered: XPC Code Signing Check APIs: APIs like setCodeSigningRequirement and setConnectionCodeSigningRequirement do not work when SIP disabled and that's ok given what SIP is. LaunchCodeRequirement API: When using Process.launchRequirement, the LaunchCodeRequirement API does not function anymore when SIP disabled. The IsSIPProtected requirement behaves in a way that is not clearly documented -- it appears to only apply to pre-installed Apple apps. Legacy APIs: Older APIs like SecCodeCheckValidity are likely to be non-functional, though I haven’t had the chance to validate this yet. Private API Concerns: So to mitigate those limitations I prefer my app to not even try to connect to untrusted XPC or launch untrusted Processes when SIP is disabled. The only way to determine SIP state I could find is a low-level C function csr_get_active_config. However, this function is not declared in any publicly available header file, indicating that it is a private API. Since private APIs cannot be used in App Store-distributed apps and are best avoided for Developer ID-signed apps, this does not seem like a viable solution. Given these limitations, what is the recommended and proper approach to programmatically determine the SIP state in a macOS application? Any insights or guidance would be greatly appreciated. Thank you!
2
0
200
May ’25
Mark the iOS app content not to be backed up when doing unencrypted backup in iTunes
Hi,is there an option to mark the file or folder or item stored in user defaults ... not to be backed up when doing unencrypted backup in iTunes?We are developing iOS app that contains sensitive data. But even if we enable Data Protection for the iOS app it can be backed up on mac unencrypted using iTunes. Is there a way to allow backing up content only if the backup is encrypted?
2
0
1.8k
Oct ’25
[App Attest] DNS resolution failure for attest.apple.com / development.apple.com
Hello, We are working on integrating app integrity verification into our service application, following Apple's App Attest and DeviceCheck guide. Our server issues a challenge to the client, which then sends the challenge, attestation, and keyId in CBOR format to Apple's App Attest server for verification. However, we are unable to reach both https://attest.apple.com and https://attest.development.apple.com due to network issues. These attempts have been made from both our internal corporate network and mobile hotspot environments. Despite adjusting DNS settings and other configurations, the issue persists. Are there alternative methods or solutions to address this problem? Any recommended network configurations or guidelines to successfully connect to Apple's App Attest servers would be greatly appreciated. Thank you.
2
0
130
May ’25