We are currently trying to fix a bug when using SignIn with Apple. It appears that on some occasions we are not receiving a user's profile info (name, email) when a new account is created.
After doing some investigation we believe this bug is due to the same Apple login being used as an already deleted account. ASF only appears to send profile info the very first time an Apple login is used. If that account is deleted and another is created with the same apple login we won't receive the profile info.
As a result we are not in compliance with Apple's guidelines requiring that we use the provided profile info with Apple SigIn, and need to prompt users to enter it again.
Is there a process in place to properly "clear" a user after their account is deleted in our system, so that the next time a user creates an account with the same Apple login, we receive their profile info again?
General
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I’ve explained this point many times on the forums, so I figured I’d write it up properly once and for all.
If you have questions or comments, start a new thread in Privacy & Security > General and add the App Sandbox tag. That way I’ll be sure to see it.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
The Case for Sandboxing a Directly Distributed App
Many folks consider the App Sandbox to be a binary choice:
“My app ships in the Mac App Store, so I must sandbox it.”
“I directly distribute my app, so I’ll ignore the App Sandbox.”
However, those are not your only options. In many cases it makes sense to sandbox a directly distributed app. Sandboxing your app has at least three benefits:
It enables app container protection. See Trusted Execution Resources for a link to more info on that.
If your app includes any app extensions, it simplifies your development experience because your app and its extensions run in a similar environment.
It improves your app’s security (although the actual benefits vary based on the specifics of your app).
Sandboxing some apps can be tricky because of the additional security limits applied by the sandbox. However, in a directly distributed app you have access to two techniques that are not available to Mac App Store apps:
Temporary exception entitlements
Non-sandboxed XPC services
Temporary exception entitlements
Use temporary exception entitlements to selectively disable specific sandbox security limits.
Imagine, for example, that you’re creating a simple document-based app that’s generally compatible with the sandbox. However, that app needs to send an Apple event to Music to create a playlist. That Apple event is blocked by the sandbox. You don’t need to disable the entire App Sandbox just to get around this security limit. Instead, use the com.apple.security.temporary-exception.apple-events entitlement to open a small hole in the sandbox.
There are temporary exception entitlements to disable most sandbox security limits. For more information about them, follow the link in App Sandbox Resources.
IMPORTANT Don’t be alarmed by the temporary in temporary exception entitlements. That word makes sense when you view this from the Mac App Store perspective. Back in the early days of the Mac App Store, some apps were allowed to use temporary exception entitlements because of limitations in the App Sandbox. Once App Sandbox was sufficiently enhanced, these temporary exception entitlements were no longer allowed in the Mac App Store. However, there’s nothing temporary about the implementation of these entitlements. They work today and are expected to continue working in the future. Using them in a directly distributed app is not a problem.
Non-sandboxed XPC services
Not all sandbox security limits have a corresponding temporary exception entitlement. For example, the sandbox prevents you from sending a Unix signal to other processes, and there’s no temporary exception entitlement to allow that.
If you run into such a limit, move that code to a non-sandboxed XPC service, then have the main app request that the XPC service perform the operation on its behalf.
An XPC service can be useful even when there is a temporary exception entitlement to disable a specific sandbox security limit. Continuing the Apple event example from above, if you put the code that sends the Apple event into an XPC service, you only need to apply the temporary exception entitlement to that service, not to your app as a whole.
Conclusion
If you directly distribute your app, consider enabling the App Sandbox. It has some important benefits, and it might be more feasible than you think.
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
}
}
}
Estou compartilhando algumas observações técnicas sobre Crash Detection / Emergency SOS no ecossistema Apple, com base em eventos amplamente observados em 2022 e 2024, quando houve chamadas automáticas em massa para serviços de emergência.
A ideia aqui não é discutir UX superficial ou “edge cases isolados”, mas sim comportamento sistêmico em escala, algo que acredito ser relevante para qualquer time que trabalhe com sistemas críticos orientados a eventos físicos.
Contexto resumido
A partir do iPhone 14, a Detecção de Acidente passou a correlacionar múltiplos sensores (acelerômetros de alta faixa, giroscópio, GPS, microfones) para inferir eventos de impacto severo e acionar automaticamente chamadas de emergência. Em 2022, isso resultou em um volume significativo de falsos positivos, especialmente em atividades com alta aceleração (esqui, snowboard, parques de diversão). Em 2024, apesar de ajustes, houve recorrência localizada do mesmo padrão.
Ponto técnico central
O problema não parece ser hardware, nem um “bug pontual”, mas sim o estado intermediário de decisão:
Aceleração ≠ acidente
Ruído ≠ impacto real
Movimento extremo ≠ incapacidade humana
Quando o classificador entra em estado ambíguo, o sistema depende de uma janela curta de confirmação humana (toque/voz). Em ambientes ruidosos, com o usuário em movimento ou fisicamente ativo, essa confirmação frequentemente falha. O sistema então assume incapacidade e executa a ação fail-safe: chamada automática.
Do ponto de vista de engenharia de segurança, isso é compreensível. Do ponto de vista de escala, é explosivo.
Papel da Siri
A Siri não “decide” o acidente, mas é um elo sensível na cadeia humano–máquina. Falhas de compreensão por ruído, idioma, respiração ofegante ou ausência de resposta acabam sendo interpretadas como sinal de emergência real. Isso é funcionalmente equivalente ao que vemos em sistemas automotivos como o eCall europeu, quando a confirmação humana é inexistente ou degradada.
O dilema estrutural
Há um trade-off claro e inevitável:
Reduzir falsos negativos (não perder um acidente real)
Aumentar falsos positivos (chamadas indevidas)
Para o usuário individual, errar “para mais” faz sentido. Para serviços públicos de emergência, milhões de dispositivos errando “para mais” criam ruído operacional real.
Por que isso importa para developers
A Apple hoje opera, na prática, um dos maiores sistemas privados de segurança pessoal automatizada do mundo, interagindo diretamente com infraestrutura pública crítica. Isso coloca Crash Detection / SOS na mesma categoria de sistemas safety-critical, onde:
UX é parte da segurança
Algoritmos precisam ser auditáveis
“Human-in-the-loop” não pode ser apenas nominal
Reflexões abertas
Alguns pontos que, como developer, acho que merecem discussão:
Janelas de confirmação humana adaptativas ao contexto (atividade física, ruído).
Cancelamento visual mais agressivo em cenários de alto movimento.
Perfis de sensibilidade por tipo de atividade, claramente comunicados.
Critérios adicionais antes da chamada automática quando o risco de falso positivo é estatisticamente alto.
Não é um problema simples, nem exclusivo da Apple. É um problema de software crítico em contato direto com o mundo físico, operando em escala planetária. Justamente por isso, acho que vale uma discussão técnica aberta, sem ruído emocional.
Curioso para ouvir perspectivas de quem trabalha com sistemas similares (automotivo, wearables, safety-critical, ML embarcado).
— Rafa
Topic:
Privacy & Security
SubTopic:
General
Tags:
Siri Event Suggestions Markup
Core ML
App Intents
Communication Safety
冷启动后我们读文件,发现:"error_msg":"未能打开文件“FinishTasks.plist”,因为你没有查看它的权限。
是否有这些问题:
「iOS 26 iPhone 16,2 cold launch file access failure」)
核心内容:多名开发者反馈 iPhone 15 Pro(iOS 26.0/26.1)冷启动时读取 Documents 目录下的 plist 文件提示权限拒绝,切后台再切前台恢复,苹果员工回复「建议延迟文件操作至 applicationDidBecomeActive 后」。
Topic:
Privacy & Security
SubTopic:
General
Hello,
I am working on a script to update an application which bundle ID changed. Only the bundle ID was modified; all other aspects remain unchanged.
This application requires access to "Screen & System Audio Recording" permissions, which are currently granted to the old bundle ID.
The script performs the following steps:
launchctl bootout gui/$(id -u) /Library/LaunchAgents/com.my_agent_1.plist
pkgutil --forget com.my_agent_1
tccutil reset All com.my_agent_1
rm /Library/LaunchAgents/com.my_agent_1.plist
rm -rf </path/to/com_my_agent_1>
installer -dumplog -allowUntrusted -pkg </path/to/com_my_agent_2.pkg> -target /
...
When running steps #1-6 without a restart between steps #5 and #6, the old bundle ID (com.my_agent_1) remains visible in TCC.db (verified via SQL queries).
Looks like this is the reason why "com.my_agent_2" is not automatically added to the permission list (requiring manual add).
Moreover, "tccutil reset All com.my_agent_1" does not work anymore, the error:
tccutil: No such bundle identifier "com.my_agent_1": The operation couldn’t be completed. (OSStatus error -10814.)
Is there any way to completely clear the "Privacy & Security" permissions without requiring a system restart?
Thank you a lot for your help in advance!
News link: https://developer.apple.com/news/?id=12m75xbj
If your app offers Sign in with Apple, you’ll need to use the Sign in with Apple REST API to revoke user tokens when deleting an account.
I'm not good English. I'm confused about the above sentence
Do I have to use REST API unconditionally or can I just delete to the account data?
Topic:
Privacy & Security
SubTopic:
General
Tags:
App Review
Sign in with Apple REST API
Sign in with Apple
I noticed, that even though my AutoFill Credential Provider Extension works with Safari for both Passwords and Passkeys, it doesn't work in context menus inside arbitrary textfields, meanwhile the same is true for the Apple Passwords app. This is a great hit to AutoFill productivity, as my extension is unable to fill textfields by just going to the context menu and clicking AutoFill > Passwords..
Is this a feature only available to Apple via private APIs, or is this something I can interface with?
I checked and the Passwords app does use some undocumented but non-private entitlements:
[Key] com.apple.authentication-services.access-credential-identities
[Value]
[Bool] true
I also checked the responsible executable for some hints (AutoFillPanelService) however found nothing that would lead me to believe this is a public extension point.
Another idea I had was trying to use a macOS Service for this, however Services in the "General" category won't show up in any context menu, only in the Application's Main Menu.
I keep getting the following error when trying to run Passkey sign in on macOS.
Told not to present authorization sheet: Error Domain=com.apple.AuthenticationServicesCore.AuthorizationError Code=1 "(null)"
ASAuthorizationController credential request failed with error: Error Domain=com.apple.AuthenticationServices.AuthorizationError Code=1004 "(null)"
This is the specific error.
Application with identifier a is not associated with domain b
I have config the apple-app-site-association link and use ?mode=developer
Could there be any reason for this?
Topic:
Privacy & Security
SubTopic:
General
Tags:
macOS
Objective-C
Authentication Services
Passkeys in iCloud Keychain
Hi Apple Developer Team,
I am encountering an issue with the “Sign in with Apple” feature. While implementing this functionality in my dotnet application, I noticed that the user’s first name and last name are not being returned, even though I have explicitly requested the name scope. However, the email and other requested information are returned successfully.
Here are the details of my implementation: 1. Scope Requested: name, email 2. Response Received: Email and other data are present, but fullName is missing or null. 3. Expected Behavior: I expected to receive the user’s first and last name as per the fullName scope.
I have verified the implementation and ensured that the correct scopes are being passed in the request.
Could you please help clarify the following? 1. Are there specific conditions under which Apple may not return the user’s fullName despite the scope being requested? 2. Is there a recommended approach or fallback mechanism to handle this scenario? 3. Could this behavior be related to a limitation or change in the API, or might it be an issue on my end?
I also came to know that for initial sign in the user details will be displayed in the signin-apple payload as Form data but how do I fetch those form-data from the signin-apple request, please suggest
I would greatly appreciate any guidance or solutions to resolve this issue.
Thank you for your support!
The One-time codes documentation details how to enable autofill for SMS based codes. However, there is no details about how to correctly implement autofill for email based codes.
I am observing the email based autofill works inconsistently when using email based OTC. In my application:
There is latency of 10-15 seconds from when the email arrives to when it is available for autofill.
After the autofill feature is used, the OTC email is not being deleted from the inbox automatically.
Without documentation, it's unclear to me what I might be doing wrong that is causing these side effects.
I found an ietf proposal for how autofill with email based codes might work, but it’s unclear if this is how Apple has implemented the feature: https://www.ietf.org/archive/id/draft-wells-origin-bound-one-time-codes-00.html#name-email
Existing docs for Autofill using SMS: https://developer.apple.com/documentation/security/enabling-autofill-for-domain-bound-sms-codes
https://developer.apple.com/documentation/apptrackingtransparency/attrackingmanager/authorizationstatus/notdetermined
Note:
Discussion
If you call ATTrackingManager.trackingAuthorizationStatus in macOS, the result is always ATTrackingManager.AuthorizationStatus.notDetermined.
So, does macOS support getting ATT?
Is there a way (in code or on the OAuth2 server/webpage) to specify the desired window size when using ASWebAuthenticationSession on macOS? I haven't found anything, and we would prefer the window to be narrower. For one of our users, the window is even stretched to the full screen width which looks completely broken…
Our product includes a background sync process that synchronizes credentials between devices. We need to update ASCredentialIdentityStore when credentials are changed, we have noticed that the ASCredentialIdentityStore.shared.saveCredentialIdentities() fails to run when the device is locked.
Is it possible to update ASCredentialIdentityStore when the device is locked?
Hi,
I’m currently implementing App Attest attestation validation on the development server.
However, I’m receiving a 403 Forbidden response when I POST a CBOR-encoded payload to the following endpoint:
curl -X POST
-H "Content-Type: application/cbor"
--data-binary @payload.cbor
'https://data-development.appattest.apple.com'
Here’s how I’m generating the CBOR payload in Java:
Map<String, Object> payload = new HashMap<>();
payload.put("attestation", attestationBytes); // byte[] from DCAppAttestService
payload.put("clientDataHash", clientDataHash); // SHA-256 hash of the challenge (byte[])
payload.put("keyId", keyIdBytes); // Base64-decoded keyId (byte[])
payload.put("appId", TEAM_ID + "." + BUNDLE_ID); // e.g., "ABCDE12345.com.example.app"
ObjectMapper cborMapper = new ObjectMapper(new CBORFactory());
byte[] cborBody = cborMapper.writeValueAsBytes(payload);
I’m unsure whether the endpoint is rejecting the payload format or if the endpoint itself is incorrect for this stage.
I’d appreciate clarification on the following:
1. Is https://data-development.appattest.apple.com the correct endpoint for key attestation in a development environment?
2. Should this endpoint accept CBOR-encoded payloads, or is it only for JSON-based assertion validation?
3. Is there a current official Apple documentation that lists:
• the correct URLs for key attestation and assertion validation (production and development),
• or any server-side example code (e.g., Java, Python) for handling attestation/validation on the backend?
So far, I couldn’t find an official document that explicitly describes the expected HTTP endpoints for these operations.
If there’s a newer guide or updated API reference, I’d appreciate a link.
Thanks in advance for your help.
Hello
I'm using Auth0 for handling auth in my app
When the user wants to sign in, it will show the auth system pop-up
And when the user wants to log out it shows the same pop-up
My issue is how to replace the Sign In text in this pop-up to show Sign Out instead of Sign In when the user wants to sign out?
Hello,
I’m planning to develop a custom referral-based attribution system for my app. The goal is to log the number of installs that come from unique referral links and then track subsequent in‑app analytics (for example, when a user reaches level 5 in a game). I’d also like to capture the user’s country to further segment these analytics.
I want to build this system myself—without relying on third‑party services (such as AppsFlyer or Branch) since I only need a few key data points and want to keep costs low. However, I’m aware of the privacy restrictions in iOS and want to ensure that my implementation complies with Apple’s guidelines.
Specifically, I would appreciate guidance on the following:
Permissible Signals:
Is it acceptable to log signals like IP address (or a suitably anonymized version), device model, and timestamp to help correlate the referral click to a successful install and subsequent in‑app events?
Are there any other recommended non‑PII signals that can be used to confirm a referral install without risking rejection during App Review?
Best Practices:
What are the best practices for handling and transmitting these signals (e.g., should IP addresses be truncated or hashed)?
How can I ensure that my system remains compliant with Apple’s App Tracking Transparency and other privacy guidelines?
I’d appreciate any insights or references to relevant documentation that might help me build this system without getting rejected by Apple.
Thank you in advance for your assistance!
When developing and testing using my phone I got prompted for allowing app tracking. I later uploaded a build to TestFlight, deleted the old testing app and installed the TestFlight build. I am now stuck in an infinite loop of not getting prompted for allowing app tracking for the app. When entering the app settings the toggle for tracking never appears which leaves me not able to enter the app's content. My guess is that the prompt can only be shown once for the app bundle, but there has to be a way for me to get prompted again without changing the app bundle id. Help is appreciated since this app is scheduled to be published in a week.
Our company has a micro service which sends a notification email to an iCloud account/email and the email is going to the junk folder. As we tested, the email generated from user-field.company.com goes to the Inbox, while the email from user-dev.company.com goes to the Junk folder. Is there a way to avoid sending the emails to client's Junk folder when the email is sent from a specific company domain?
We currently have an app that uses Sign in with Apple (SIWA), and we are planning to discontinue the SIWA feature. Specifically, we intend to disable SIWA from the app's Capabilities in the Apple Developer Center.
My question is, if we disable SIWA, can we continue to use the private email addresses of users who registered using SIWA? Or will disabling SIWA also invalidate the users' private email addresses?
We are considering asking users to change to a different, valid email address in our app. However, if the private email addresses are invalidated, we will not be able to disable SIWA until all users have completed the email address change.
If anyone has knowledge about these behaviors, please let us know.