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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Security Resources
General: Forums topic: Privacy & Security Apple Platform Security support document Developer > Security Enabling enhanced security for your app documentation article Creating enhanced security helper extensions documentation article Security Audit Thoughts forums post Cryptography: Forums tags: Security, Apple CryptoKit Security framework documentation Apple CryptoKit framework documentation Common Crypto man pages — For the full list of pages, run: % man -k 3cc For more information about man pages, see Reading UNIX Manual Pages. On Cryptographic Key Formats forums post SecItem attributes for keys forums post CryptoCompatibility sample code Keychain: Forums tags: Security Security > Keychain Items documentation TN3137 On Mac keychain APIs and implementations SecItem Fundamentals forums post SecItem Pitfalls and Best Practices forums post Investigating hard-to-reproduce keychain problems forums post App ID Prefix Change and Keychain Access forums post Smart cards and other secure tokens: Forums tag: CryptoTokenKit CryptoTokenKit framework documentation Mac-specific resources: Forums tags: Security Foundation, Security Interface Security Foundation framework documentation Security Interface framework documentation BSD Privilege Escalation on macOS Related: Networking Resources — This covers high-level network security, including HTTPS and TLS. Network Extension Resources — This covers low-level network security, including VPN and content filters. Code Signing Resources Notarisation Resources Trusted Execution Resources — This includes Gatekeeper. App Sandbox Resources Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com"
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3.5k
Nov ’25
Privacy & Security Resources
General: Forums topic: Privacy & Security Privacy Resources Security Resources Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com"
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320
Jul ’25
Privacy rights issue
I was in the webview long according to the pictures, and then select "save image" will lead to collapse, I have passed on the info plist add NSPhotoLibraryAddUsageDescription solved it. Now I have another question, does the last item "query" in the screenshot have a similar problem? Since I couldn't click the button (I don't know why this happened), I couldn't test it on the real machine.
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355
Jan ’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?
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122
May ’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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316
Aug ’25
Persistent Privacy Notification Issue with Screen & Audio Access on macOS 15+
Hello Apple Developer Community, We have been experiencing a persistent notification issue in our application, Flowace, after updating to macOS 15 and above. The issue is affecting our customers but does not occur on our internal test machines. Issue Description When users share their screen using Flowace, they receive a repetitive system notification stating: "Flowace has accessed your screen and system audio XX times in the past 30 days. You can manage this in settings." This pop-up appears approximately every minute, even though screen sharing and audio access work correctly. This behavior was not present in macOS 15.1.1 or earlier versions and appears to be related to recent privacy enhancements in macOS. Impact on Users The frequent pop-ups disrupt workflows, making it difficult for users to focus while using screen-sharing features. No issues are detected in Privacy & Security Settings, where Flowace has the necessary permissions. The issue is not reproducible on our internal test machines, making troubleshooting difficult. Our application is enterprise level and works all the time, so technically this pop only comes after a period of not using the app. Request for Assistance We would like to understand: Has anyone else encountered a similar issue in macOS 15+? Is there official Apple documentation explaining this new privacy behavior? Are there any interim fixes to suppress or manage these notifications? What are Apple's prospects regarding this feature in upcoming macOS updates? A demonstration of the issue can be seen in the following video: https://youtu.be/njA6mam_Bgw Any insights, workarounds, or recommendations would be highly appreciated! Thank you in advance for your help. Best, Anuj Patil Flowace Team
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Apr ’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
Can't send email to private 550 5.1.1 unauthorized sender
I have add my domani and email address to Configure Sign in with Apple for Email Communication (https://developer.apple.com/account/resources/services/configure) and it pass SPF already but when it send from server that i setup is had "Error Description : Permanament error. Please do not try again, according to the information returned by the other party to confirm the specific cause of the error. Cause:550 5.1.1 : unauthorized sender" a mail service is on Alibaba Cloud the email that i want to sending to is ending with @privaterelay.appleid.com it that have any solve problem or i missing any thing else ?
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461
Jan ’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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420
Aug ’25
Keychain Item Lost During Resetting Face ID
I'm using the following code to store a Keychain item: SecAccessControlCreateWithFlags( kCFAllocatorDefault, kSecAttrAccessibleWhenUnlockedThisDeviceOnly, .biometryAny, &error ) One of my app users reported an issue: 1. The user navigated to his iPhone’s Face ID settings and click `Reset Face ID`. 2. Then, before he set new Face ID, he accidentally tapped the "Back" button and returned to the iPhone Settings page. 3. He later reopened the Face ID setup page and completed the process. 4. Upon returning to my app, the Keychain item secured by Face ID was no longer found. I understand that .biometryAny may cause Keychain items to become invalidated when biometric data is reset. However, the user’s scenario — where the setup was temporarily interrupted — seems to have caused the item to disappear. 1. Is there a way to detect and handle such interruptions to prevent the Keychain item from being lost? 2. How can I design a better experience to guide the user in recreating the Keychain item when this occurs?
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308
Dec ’24
How to use App Attest Environment?
Hi, I'm looking at adding App Attest to an app, and I think I understand the mechanics of the attestation process, but I'm having trouble figuring out how development and testing are supposed to work. Two main questions: The "App Attest Environment" -- the documentation says that attestation requests made in the .development sandbox environment don't affect the app's risk metrics, but I'm not sure how to actually use this sandbox. My understanding is that one of the things App Attest does is to ensure that your app has been appropriately signed by the App Store, so it knows that it hasn't been tampered with. But the docs say that App Store builds (and Test Flight and Developer Enterprise Program) always use the .production environment. Does App Attest actually work for local developer-build apps if you have this entitlement set? Presumably only on hardware devices since it requires the Secure Enclave? Does our headend have to do something different when verifying the public key and subsequent attested requests for an app that's using the .development sandbox? The docs do mention that a headend server should potentially track two keys per device/user pair so that it can have a production and development key. How does the headend know if a key is from the sandbox environment? Thanks!
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134
Jun ’25
Shared Device Mode iPad Passcode Reset Duration
I was wondering if anyone had experience with Managed Device Profiles on iPad to be able to answer a quick question regarding passcode reset. We are using Microsoft Intune to manage our fleet of iPads that our store employees will use on an Ad-Hoc basis. When a user logs into an iPad for the day, we are issuing a resetPasscode command to the MicrosoftGraph specifying that device ID. We are getting a successful response to the iPad itself. But the device is allowing the user 1 hour of free time to dismiss the reset passcode dialogue. Which enables them to use the iPad unprotected for up to an hour, which is not what we want. Does anyone know of any way to force the user to select a passcode immediately? I know this is a device side restriction. But is there anything apple can do to help us in this instance, since our MDM profile can't close this time window on the Intune side?
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324
Jan ’25
[SSL Pinning] NSPinnedDomains is not working on my testing
Hi, Just follow the related post to implement this method in the app, but it gave me error, like: "An SSL error has occurred and a secure connection to the server cannot be made" the info plist configuration like below, NSPinnedDomains mysite.com NSIncludesSubdomains NSPinnedCAIdentities SPKI-SHA256-BASE64 r/mIkG3eEpVdm+u/ko/cwxzOMo1bk4TyHIlByibiA5E= The pub key is right for me, since it works when I use different pub key pinning through URLSession interface. So here, I dont know where to start the troubleshooting, any advice would be appreciated.
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311
Dec ’24
SecPKCS12Import fails in Tahoe
We are using SecPKCS12Import C API in our application to import a self seigned public key certificate. We tried to run the application for the first time on Tahoe and it failed with OSStatus -26275 error. The release notes didn't mention any deprecation or change in the API as per https://developer.apple.com/documentation/macos-release-notes/macos-26-release-notes. Are we missing anything? There are no other changes done to our application.
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763
Sep ’25
Unexpectedly invalidated Biometrics in iOS 18.3.2 or later
There is a sudden surge of users in our apps with invalidated biometrics. Even though the issue is being handled correctly and the user has another way to login, some of the users forgot their passwords and they can not login. Is there any known issue with Biometrics in iOS 18.3.2 or later? There is a (possible) related discussion here: https://discussions.apple.com/thread/256011565
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84
Apr ’25
XCode claims that tracking domains are not listed in the Privacy Manifest
Hi, Xcode Instruments shows multiple Points of Interest with the information that the framework is not listed in my Privacy Manifest. However, I have already included them in the Privacy Manifest under the privacy tracking domains. I have this problem with every tracking domain i listed in the Privacy Manifest's Privacy Tracking Domains. Did I make a mistake in my Privacy Manifest declaration?
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107
May ’25
How to Test Email Sharing Flow Again with Sign In with Apple, Using Same Apple ID?
I am developing an app that uses Sign In with Apple for authentication, and I need to test different scenarios, such as when a user chooses not to share their email. However, after logging in for the first time, I cannot reset the permissions flow to test again. Even after uninstalling the app, revoking access to the Apple ID in ‘Settings > Apps Using Apple ID,’ and attempting to log in again, only the token (identityToken) is returned, while the full information (email, name, surname) is no longer provided. This makes it difficult to simulate the initial user behavior, especially when choosing to share or not share their email. I would like to know: 1. Is there a way to completely reset the permissions flow so I can test as if it were the first time using the same Apple ID? 2. Are there any recommended solutions for development scenarios without needing to create multiple Apple IDs? Thank you for any guidance on how to proceed.
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365
Jan ’25