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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App Sandbox Resources
General: Forums subtopic: Privacy & Security > General Forums tag: App Sandbox App Sandbox documentation App Sandbox Design Guide documentation — This is no longer available from Apple. There’s still some info in there that isn’t covered by the current docs but, with the latest updates, it’s pretty minimal (r. 110052019). Still, if you’re curious, you can consult an old copy [1]. App Sandbox Temporary Exception Entitlements archived documentation — To better understand the role of temporary exception entitlements, see this post. Embedding a command-line tool in a sandboxed app documentation Discovering and diagnosing App Sandbox violations (replaces the Viewing Sandbox Violation Reports forums post) Resolving App Sandbox Inheritance Problems forums post The Case for Sandboxing a Directly Distributed App forums post Implementing Script Attachment in a Sandboxed App forums post Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com" [1] For example, this one archived by the Wayback Machine.
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2.8k
Jul ’25
Anti-**** Apps Need Solutions to iOS Sandbox Restrictions
Hello everyone, I’ve been working on ways to implement stricter accountability systems for personal use, especially to prevent access to NSFW content in apps like Reddit and Twitter. The main challenge is that iOS sandboxing and privacy policies block apps from monitoring or interacting with other apps on the system. While Apple’s focus on privacy is important, there’s a clear need for an opt-in exception for accountability tools. These tools could be allowed enhanced permissions under stricter oversight to help users maintain accountability and integrity without compromising safety. Here are a few ideas I’ve been thinking about: 1. Vetted Apps with Enhanced Permissions: Allow trusted applications to bypass sandbox restrictions with user consent and close monitoring by Apple. 2. Improved Parental Controls: Add options to send notifications to moderators (like accountability partners) when restrictions are bypassed or disabled. 3. Custom Keyboard or API Access: Provide a framework for limited system-wide text monitoring for specific use cases, again with user consent. If anyone has ideas for how to address this within current policies—or suggestions for advocating for more flexibility—I’d appreciate the input. I’m curious how others have handled similar challenges or if there are better approaches I haven’t considered.
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519
Jan ’25
Apple Oauth in expo web
Recently I am trying to implement apple oauth in expo web version, I created the service id and other related info, i have issue @PostMapping("/callback") public ResponseEntity handleAppleCallback(@RequestParam Map<String, String> body) { String code = body.get("code"); String idToken = body.get("id_token"); if (code == null) { return ResponseEntity.badRequest().build(); } // Redirect to your Expo Web app with the code in query String frontendUrl = "https://mobile-dot-dev-epicportal.uc.r.appspot.com/apple-callback?code=" + code; return ResponseEntity.status(HttpStatus.FOUND) .header("Location", frontendUrl) .build(); } when i pass the code recived from apple to this route i am getting invalid_grant i am not sure what is wrong here
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138
Nov ’25
signInWithAppleButton not respond
Hi, My app keeps getting rejected during App Review with the reason that the Sign in with Apple button is unresponsive. However, I have tested it extensively on: • A real iPad Pro (iPadOS 18.3.2) • Multiple Xcode simulators • Including an iPad Air 5th simulator (18.3.1) In all of these cases, the button works correctly. The reviewer mentioned they are using an iPad Air 5th running iPadOS 18.3.2, which I cannot find as a simulator in Xcode, nor do I have access to this exact device around me. I’m using standard SignInWithAppleButton code with no custom wrappers or UI layers on top. Here is the relevant snippet: GeometryReader { geometry in ZStack { Color.black.opacity(0.3) .ignoresSafeArea() .onTapGesture { prompt = "" showChat = false } VStack(alignment: .leading, spacing: 0){ switch purchaseManager.hasAISubscription { case 1: HStack{ } case 2: HStack{ } case 3: HStack{ } default: HStack{ } } Divider() ScrollView { VStack(alignment: .leading, spacing: 8) { ForEach(filteredChatHistory, id: \.id) { chat in } } Spacer() } .frame(maxHeight: geometry.size.height * 0.7) .defaultScrollAnchor(.bottom) .padding() Divider() HStack(){ if httpManager.isLoggedIn && purchaseManager.hasAISubscription > 0 { } } else if purchaseManager.hasAISubscription == 0{ } else{ Spacer() SignInWithAppleButton(.continue){ request in request.requestedScopes = [.email] } onCompletion: { result in switch result { case .success(let auth): switch auth.credential { case let appleCredential as ASAuthorizationAppleIDCredential: let userID = appleCredential.user saveToKeychain(userID, for: "com.xing-fu.aireader.apple.userid") if let identityTokenData = appleCredential.identityToken, let identityToken = String(data: identityTokenData, encoding: .utf8) { Task { //后端认证过,才算登录成功 await httpManager.loginWithApple(identityToken) } } break default: break } case .failure(let error): print("error") } } .frame(maxWidth: 350, maxHeight: 40) .padding() .cornerRadius(10) Spacer() } } } .overlay( // 边框 RoundedRectangle(cornerRadius: 10) .stroke(Color.g2, lineWidth: 4) ) .background(Color(UIColor.systemBackground)) .cornerRadius(10) // 圆角 .shadow(color: Color.black.opacity(0.1), radius: 5, x: 0, y: 5) .frame(width: geometry.size.width * 0.8) .onDisappear{ httpManager.alertMessage = nil } } }
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140
Mar ’25
[Resolved] Sign in with Apple Service Outage: Thursday, June 12, 2025
On Thursday, June 12, 2025, Sign in with Apple was impacted by an incorrect subdomain defined in its /.well-known/openid-configuration file. The JSON returned incorrectly provided https://account.apple.com instead of the expected https://appleid.apple.com. For Sign in with Apple, the value for the issuer (iss) claim in the user's identity token is https://appleid.apple.com. Additionally, if your clients use the Sign in with Apple REST API, the following endpoints should be used for each request: https://appleid.apple.com/auth/authorize https://appleid.apple.com/auth/token https://appleid.apple.com/auth/revoke https://appleid.apple.com/auth/keys This issue with the /.well-known/openid-configuration file was resolved the same day. Use the URL below to confirm the expected subdomain is provided, as needed: https://appleid.apple.com/.well-known/openid-configuration Cheers, Paris X Pinkney |  WWDR | DTS Engineer
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238
Jun ’25
"Sign in with Apple" issue
Hello. I have issue with implementing "Sign in with Apple" on my website. As folow, I have created: App ID identifier: com.livnobus.app (G2F5N5UHYZ) Service ID identifier: com.livnobus.client (B25ZN8P84U) with option enabled "Sign in with Apple" and configuration (Primary App ID and Webiste URLs) Key ID: 43N8XKUW7S with option enabled "Sign in with Apple" and configuration (Primary App ID and Grouped App Ids) When I click "Sign in with Apple" on my website (https://dev.livnobus.com/auth/login), system redirect me to https://appleid.apple.com/ and error show "invalid_client". Redirect URL on my web site is: https://appleid.apple.com/auth/authorize?client_id=com.livnobus.client&redirect_uri=https%3A%2F%2Fdev.livnobus.com%2Fauth%2Fapple%2Fcallback&scope=name%20email&response_type=code&response_mode=form_post&state=eGAgdpLrvskJc26RbTizc9TGwxnL6KAEJOf68pmO&nonce=e7c7a242-1977-47ea-9013-98820c24bfba.eGAgdpLrvskJc26RbTizc9TGwxnL6KAEJOf68pmO There was old Service ID identifier com.livnobus.app-client, for which I lost private KEY, so I have created new one: com.livnobus.client With old Service ID com.livnobus.app-client, https://appleid.apple.com/ shows me Apple form for sign in, but with new Service ID com.livnobus.client there is error "invalid_client" https://appleid.apple.com/auth/authorize?client_id=com.livnobus.app-client&redirect_uri=https%3A%2F%2Fdev.livnobus.com%2Fauth%2Fapple%2Fcallback&scope=name%20email&response_type=code&response_mode=form_post&state=eGAgdpLrvskJc26RbTizc9TGwxnL6KAEJOf68pmO&nonce=e7c7a242-1977-47ea-9013-98820c24bfba.eGAgdpLrvskJc26RbTizc9TGwxnL6KAEJOf68pmO These changes I have made last Friday, and since then I can't use "Sign in with Apple" on my website. Thanks!
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77
Jun ’25
Trusted Execution Resources
Trusted execution is a generic name for a Gatekeeper and other technologies that aim to protect users from malicious code. General: Forums topic: Code Signing Forums tag: Gatekeeper Developer > Signing Mac Software with Developer ID Apple Platform Security support document Safely open apps on your Mac support article Hardened Runtime document WWDC 2022 Session 10096 What’s new in privacy covers some important Gatekeeper changes in macOS 13 (starting at 04: 32), most notably app bundle protection WWDC 2023 Session 10053 What’s new in privacy covers an important change in macOS 14 (starting at 17:46), namely, app container protection WWDC 2024 Session 10123 What’s new in privacy covers an important change in macOS 15 (starting at 12:23), namely, app group container protection Updates to runtime protection in macOS Sequoia news post Testing a Notarised Product forums post Resolving Trusted Execution Problems forums post App Translocation Notes forums post Most trusted execution problems are caused by code signing or notarisation issues. See Code Signing Resources and Notarisation Resources. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com"
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3.2k
Jul ’25
api and data collection app stroe connect
I added a feature to my app that retrieves only app settings (no personal data) from my API hosted on Cloudflare Workers. The app does not send, collect, track, or share any user data, and I do not store or process any personal information. Technical details such as IP address, user agent, and device information may be automatically transmitted as part of the internet protocol when the request is made, but my app does not log or use them. Cloudflare may collect this information. Question: Does this count as “data collection” for App Store Connect purposes, or can I select “No Data Collected”?
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426
Aug ’25
Sending to Private Relay Email using amazon ses not working
Hello Developers, I have ran into a problem while sending mail to apple private relay email. We have built a mobile application where user can sign up through apple and they can sign up using hide-my-email feature. Which provides private relay address for us. Now we want to communicate with them using private relay mail address. The technology we are using to send emails are amazon SES, have done SPF, DMIK, DMARC and added domains in apple identity services for mail communication, passed an SPF check as well. But still mail is not getting delivered what am i doing wrong or apple doesn't support third party apps for sending emails to private relay? Is there any other way to achieve this please let me know Using the same body as attached in image is working fine for rest emails.
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343
Sep ’25
how can i pass the passkeyRegistration back to the user agent(web)
After registe Passkey with webauthn library, i create a passkeyRegistration with follow, let passkeyRegistration = ASPasskeyRegistrationCredential(relyingParty: serviceIdentifier, clientDataHash: clientDataHashSign, credentialID: credentialId, attestationObject: attestationObject) and then completeRegistrationRequest like that, extensionContext.completeRegistrationRequest(using: passkeyRegistration) But a bad outcome occurred from user agent. NotAllowedError:The request is not allowed by the user agent or the platform in the current context. And the return data rawID & credentialPublicKey is empty,
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254
Jul ’25
Handling ITMS-91061: Missing privacy manifest
An ITMS-91061: Missing privacy manifest rejection email looks as follows: ITMS-91061: Missing privacy manifest- Your app includes "<path/to/SDK>", which includes , an SDK that was identified in the documentation as a privacy-impacting third-party SDK. Starting February 12, 2025, if a new app includes a privacy-impacting SDK, or an app update adds a new privacy-impacting SDK, the SDK must include a privacy manifest file. Please contact the provider of the SDK that includes this file to get an updated SDK version with a privacy manifest. For more details about this policy, including a list of SDKs that are required to include signatures and manifests, visit: https://developer.apple.com/support/third-party-SDK-requirements. Glossary ITMS-91061: Missing privacy manifest: An email that includes the name and path of privacy-impacting SDK(s) with no privacy manifest files in your app bundle. For more information, see https://developer.apple.com/support/third-party-SDK-requirements. : The specified privacy-impacting SDK that doesn't include a privacy manifest file. If you are the developer of the rejected app, gather the name of the SDK from the email you received from Apple, then contact the SDK's provider for an updated version that includes a valid privacy manifest. After receiving an updated version of the SDK, verify the SDK includes a valid privacy manifest file at the expected location. For more information, see Adding a privacy manifest to your app or third-party SDK. If your app includes a privacy manifest file, make sure the file only describes the privacy practices of your app. Do not add the privacy practices of the SDK to your app's privacy manifest. If the email lists multiple SDKs, repeat the above process for all of them. If you are the developer of an SDK listed in the email, publish an updated version of your SDK that includes a privacy manifest file with valid keys and values. Every privacy-impacting SDK must contain a privacy manifest file that only describes its privacy practices. To learn how to add a valid privacy manifest to your SDK, see the Additional resources section below. Additional resources Privacy manifest files Describing data use in privacy manifests Describing use of required reason API Adding a privacy manifest to your app or third-party SDK TN3182: Adding privacy tracking keys to your privacy manifest TN3183: Adding required reason API entries to your privacy manifest TN3184: Adding data collection details to your privacy manifest TN3181: Debugging an invalid privacy manifest
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6.0k
Mar ’25
App transfer- get transfer {"error":"invalid_request"}
Migrating APP and users, obtaining the user's transfer_sub, an exception occurred: {"error":"invalid_request"} `POST /auth/usermigrationinfo HTTP/1.1 Host: appleid.apple.com Content-Type: application/x-www-form-urlencoded Authorization: Bearer {access_token} sub={sub}&target={recipient_team_id}&client_id={client_id}&client_secret={client_secret} The specific request is as follows: 15:56:20.858 AppleService - --> POST https://appleid.apple.com/auth/usermigrationinfo 15:56:20.858 AppleService - Content-Type: application/x-www-form-urlencoded 15:56:20.858 AppleService - Content-Length: 395 15:56:20.858 AppleService - Authorization: Bearer a56a8828048af48c0871e73b55d8910aa.0.rzvs.96uUcy1KBqo34Kj8qrPb4w 15:56:20.858 AppleService - 15:56:20.858 AppleService - sub=001315.1535dbadc15b472987acdf634719a06a.0600&target=WLN67KBBV8&client_id=com.hawatalk.live&client_secret=eyJraWQiOiIzODg5U1ZXNDM5IiwiYWxnIjoiRVMyNTYifQ.eyJpc3MiOiJRMzlUU1BHMjk3IiwiaWF0IjoxNzU1MDcxNzc5LCJleHAiOjE3NTUwNzUzNzksImF1ZCI6Imh0dHBzOi8vYXBwbGVpZC5hcHBsZS5jb20iLCJzdWIiOiJjb20uaGF3YXRhbGsubGl2ZSJ9.8i9RYIcepuIiEqOMu1OOAlmmjnB84AJueel21gNapiNa9pr3498Zkj8J5MUIzvvnvsvUJkKQjp_VvnsG_IIrTA 15:56:20.859 AppleService - --> END POST (395-byte body) 15:56:21.675 AppleService - <-- 400 Bad Request https://appleid.apple.com/auth/usermigrationinfo(816ms) 15:56:21.675 AppleService - Server: Apple 15:56:21.675 AppleService - Date: Wed, 13 Aug 2025 07:56:22 GMT 15:56:21.675 AppleService - Content-Type: application/json;charset=UTF-8 15:56:21.675 AppleService - Content-Length: 27 15:56:21.675 AppleService - Connection: keep-alive 15:56:21.675 AppleService - Pragma: no-cache 15:56:21.675 AppleService - Cache-Control: no-store 15:56:21.676 AppleService - 15:56:21.676 AppleService - {"error":"invalid_request"} 15:56:21.676 AppleService - <-- END HTTP (27-byte body) ` Current Team ID: Q39TSPG297 Recipient Team ID: WLN67KBBV8 CLIENT_ID: com.hawatalk.live
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174
Aug ’25
Group with an existing primary App ID Change
Is it possible to change the Primary App ID set in the Group with an existing primary App ID to another Primary App ID within the same group If there is a change, whether the sub values of the token will be changed upon successful login If an app corresponding to the existing Group Primary App ID is deleted from the app store, ask whether or not other apps in the same group are affected and what effect it will have If anyone knows about the above, please let me know please
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101
Apr ’25
DCDevice.current.generateToken Is it safe to cache tokens for less than 1s ?
We have a crash on DCDevice.current.isSupported We want to try to make a serial queue to generate tokens but the side effect would be the same token would be used on multiple server API requests that are made within a few ms of each other? Is this safe or will the Apple server immediately reject the same token being reused? Can you share how long tokens are safe to use for? Here is the code we want to try final actor DeviceTokenController: NSObject { static var shared: DeviceTokenController = .init() private var tokenGenerationTask: Task<Data?, Never>? var ephemeralDeviceToken: Data? { get async { // Re-using the token for short periods of time if let existingTask = tokenGenerationTask { return await existingTask.value } let task = Task<Data?, Never> { guard DCDevice.current.isSupported else { return nil } do { return try await DCDevice.current.generateToken() } catch { Log("Failed to generate ephemeral device token", error) return nil } } tokenGenerationTask = task let result = await task.value tokenGenerationTask = nil return result } } }
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599
Jul ’25
Outlook for Mac add-in - Passkeys
hello, My organization has an outlook add-in that requires auth into our platform. As Microsoft forces Auth on MacOS to use WKWebView https://learn.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins, we are running into a situation that we cannot use passkeys as an auth method as we are unable to trigger WebAuthN flows. We’ve raised this in Microsoft side but they have deferred to Apple given WKWebView is Safari based. This is a big blocker for us to achieve a full passwordless future. Has anyone come across this situation? Thank you.
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331
Aug ’25
Unexpected native popup during auth login/signout flow
We are implementing authentication login in our iOS mobile application, and during the sign-in/sign-out process, a native system popup appears with the following message: "This allows the app and website to share information about you." This popup interrupts the user experience, and we are concerned it may cause confusion for end users and negatively impact the adoption of our login flow. We would like clarification on the following points: What triggers this popup during the authentication process? Are there any recommended configurations or approaches to suppress or avoid this dialog? If the popup cannot be avoided, what best practices are suggested to ensure a clear and seamless user experience? Our objective is to provide a smooth, user-friendly authentication flow without unexpected system interruptions.
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152
Aug ’25
APP ID's indentifier not updating
When implementing Sign In with Apple I created an App ID and a Service ID for my app. I didn't configure the Server-to-Server Notification URL properly there and token revocation didn't work. Later on I updated the url config and the name of the identifiers. However, when I Sign in with Apple in my app I still see the old identifier name in my iPhone Settings->Apple Account->Sign in with Apple. I would assume that if the name doesn't update, the configuration doesn't update either. I'm using automatic Xcode signing, I have deleted all the profiles locally, cleaned project, bumped versions, waited for a week, nothing worked. Token revocation for account deletion doesn't work properly I would assume because of the initial misconfiguration. I want to mention that this is working fine for my development build (another bundleID, AppID, ServiceID) What am I missing here?
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107
Jun ’25
Sign in with Apple: Token status after app deletion in App Store Connect
Hello, I have a question regarding the lifecycle of user consent and tokens in "Sign in with Apple." Specifically, I would like to understand the behavior of the auth/revoke API in relation to App Store Connect status changes. Impact of App Status Changes If an app is "Removed from Sale" or "Deleted" from App Store Connect, does Apple automatically revoke all associated user tokens and consent? Or is it still the developer's responsibility to programmatically revoke each user's token via the REST API to ensure the app is removed from the user’s "Apps Using Apple ID" list? API Availability after Removal Once an app is no longer available on the App Store (or its record is deleted in App Store Connect), is the auth/revoke REST API still accessible? I want to ensure that a developer can still perform necessary privacy clean-up tasks (revoking consent) even if the app is not currently distributed. Specific User Impacts of Non-Revocation If we do not call the revocation API, besides the app remaining in the "Sign in with Apple" list, what are the specific consequences for the user? Thank you for your guidance.
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