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 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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3.3k
Aug ’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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209
Jul ’25
appleid login TypeError
hello. I am using the app with webview. When I log in to Apple, a typeerror appears. How can I solve this? TypeError: this.attr(...).serialize is not a function at u.get (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:691:77511) at t.getValueAndBind (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:145:1485) at e.Compute._on (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:311:3608) at e.Compute.<anonymous> (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:311:2378) at e.Compute._bindsetup (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:145:3277) at e.bindAndSetup [as bind] (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:131:200) at e.Compute.temporarilyBind (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:311:3888) at e.Compute.get (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:311:2827) at Object.u [as compute] (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:117:194) at u.___get (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:59:1930) TypeError: Cannot read properties of undefined (reading 'serialize') at u.inserted (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:691:116897) at HTMLElement.<anonymous> (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:187:673) at HTMLElement.dispatch (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:248:39204) at v.handle (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:248:37199) at Object.trigger (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:248:67752) at Object.trigger (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:224:258) at e.inserted (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:290:412) at t.each.e.fn.<computed> [as append] (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:224:2129) at O.fn.init.<anonymous> (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:248:46985) at W (https://appleid.cdn-apple.com/appleauth/static/jsj/N1506946403/profile/app.js:248:28565)
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865
Nov ’24
Can backgrounded app record phone calls?
I'd like to know: Let's say there's a backgrounded app which has microphone access, such as Signal or SoundHound or Shazam. It's established that these apps are allowed to record audio in the user's environment even after being backgrounded, seemingly for as long as they want and even upload that sound data. But can they ALSO continue recording even while another app that is in the foreground is using the microphone, such as the Phone app or Signal?
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553
Dec ’24
My first launch and... My Apple Developer Account suddenly disappeared
Hi! I've just opened Xcode and found that I can't build my app anymore. The error was about signing. Basically, there's no team in my account. Also, I've found that all my certificates have been revoked! I created my dev account a month ago and released only one macOS app. It's SecFolder (it's not self-promotion!!!). App not even in the App Store. I planned to self-distribute it. I'm in a little shock right now since I've just launched and had my first users. And of course, my app is now gone from their Macs, screaming "malware" popup in their faces now :( Since my app is all about paranoia security, this is basically a death sentence for my project... Could someone with experience in the Apple dev ecosystem help me understand what might have gone wrong? Why might Apple think that my app is malware or something? P.S. My app is about Advanced File Access Control for macOS. It gives user complete control over which applications can access specified by user files and folders
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382
Dec ’24
15.1 requestAlwaysAuthorization is no effect in WifiAccess.app
After upgrading to 15.1, SSIDs can no longer be scanned. In my main application, there is a wifiAccess.app in the LaunchService folder that is killed by embbed. This app is the root process that is placed under launchDaemon and loaded by launchd CLLocationManager *locationManager = [[CLLocationManager alloc] init]; if (@available(macOS 10.15, *)) { [locationManager requestAlwaysAuthorization]; } else { // erlier version do not need localtion permission } NSError *error; NSData *ssidStrData = [ssid dataUsingEncoding:NSUTF8StringEncoding]; CWInterface *interface = [[CWWiFiClient sharedWiFiClient] interface]; NSSet<CWNetwork *> *networks = [interface scanForNetworksWithSSID:ssidStrData error:nil]; However, the obtained networks do not have ssid. {(<CWNetwork: 0x600000368680> [ssid=(null), bssid=(null), security=WPA2 Enterprise, rssi=-49, channel=<CWChannel: 0x600000370bd0> [channelNumber=44(5GHz), channelWidth={20MHz}], ibss=0], <CWNetwork: 0x600000370b30> [ssid=(null), bssid=(null), security=WPA2 Enterprise, rssi=-73, channel=<CWChannel: 0x600000370b00> [channelNumber=6(2GHz), channelWidth={20MHz}], ibss=0], <CWNetwork: 0x600000370be0> [ssid=(null), bssid=(null), security=WPA2 Enterprise, rssi=-44, channel=<CWChannel: 0x600000370c60> [channelNumber=165(5GHz), channelWidth={20MHz}], ibss=0] }, the main program has granted the location permission, but the location authorization has not responded in this wifiaccess process. And (lldb) po [locationManager authorizationStatus] kCLAuthorizationStatusNotDetermined. The output authorization is always unauthorized, but only the authorization option of the main application can be seen in the system Settings location permissions setting, wifiaccess.app is not present on the list
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604
Nov ’24
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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305
Jan ’25
What information does FIDO2 url contain and how can we decode it in Swift?
0 In WWDC 2022 Apple launched GA of Passkeys which will enable FIDO2 authentication in iOS ecosystem, the next gen open standards based authentication mechanism to replace passwords. On a Relying Party (RP) server supporting FIDO2 when a user registration is initiated, the browser generates a QR code to register a phone as platform authenticator. I am trying to build an app which opens up a QR scanner view and I want to register for the FIDO credential from the app by scanning the QR code generated by the browser. The parsed string is of the format - FIDO:/090409094349049349....... What information does this FIDO:/090409094349049349....... url protocol contain relating to the RP? Also, is there a way to decode this in Swift to get that information in json or string format? Since the camera app on iPhone is able to scan the QR and generate information like RP domain name and user being registered, I believe there should be a way to do this from a QR scanner inside an app as well. Or are these APIs private in nature only for usage of Camera app?
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1.9k
Dec ’24
Passkey Registration Fails with “UnexpectedRPIDHash” on iOS — Domain & Associated Domains Confirmed Correct
I’m implementing Passkey registration on iOS using ASAuthorizationPlatformPublicKeyCredentialProvider. On the server side, I’m using a WebAuthn library that throws the error UnexpectedRPIDHash: Unexpected RP ID hash during verifyRegistrationResponse(). Domain: pebblepath.link (publicly routable, valid SSL certificate, no warnings in Safari) Associated Domains in Xcode**: webcredentials:pebblepath.link AASA file: { "applinks": { "apps": [] }, "webcredentials": { "apps": [ "H33XH8JMV6.com.reactivex.pebblepath" ] } } Xcode Configuration: Team ID: H33XH8JMV6 Bundle ID: com.reactivex.pebblepath Associated Domains: webcredentials:pebblepath.link Logs: iOS clientDataJSON shows "origin": "https://pebblepath.link". Server logs confirm expectedOrigin = "https://pebblepath.link" and expectedRPID = "pebblepath.link". Despite this, the server library still errors out: finishRegistration error: UnexpectedRPIDHash. I’ve verified that: The domain has a valid CA-signed SSL cert (no Safari warnings). The AASA file is reachable at https://pebblepath.link/.well-known/apple-app-site-association. The app’s entitlements match H33XH8JMV6.com.reactivex.pebblepath. I’ve removed old passkeys from Settings → Passwords on the device and retried fresh. I’m testing on a real device with iOS 16+; I am using a Development provisioning profile, but that shouldn’t cause an RP ID mismatch as long as the domain is valid. Every log indicates that the domain and origin match exactly, but the WebAuthn library still throws UnexpectedRPIDHash, implying iOS is embedding a different (or unrecognized) RP ID hash in the credential. Has anyone else encountered this with iOS passkeys and a valid domain/AASA setup? Is there an extra step needed to ensure iOS recognizes the domain for passkey registration? Any guidance or insights would be greatly appreciated!
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532
Jan ’25
Can't generate keypair through SecKeyCreateRandomKey() on macOS Sequoia - internal error
I generate a keys using : let attributes: NSDictionary = [ kSecAttrLabel: label, kSecUseKeychain: getSystemKeychain()!, kSecAttrKeyType: kSecAttrKeyTypeEC, kSecAttrKeyType: kSecAttrKeyTypeECSECPrimeRandom, kSecAttrKeySizeInBits: 256, kSecPrivateKeyAttrs: [ kSecAttrIsPermanent: true, kSecAttrApplicationTag: tag, ] as [CFString : Any] ] var error: Unmanaged&lt;CFError&gt;? // Generate a new private key guard let privateKey = SecKeyCreateRandomKey(attributes, &amp;error) else { logger.error("failed to create a keypair \(String(describing: error))") return (nil, nil) } I keep getting this error : failed to create a keypair Optional(Swift.Unmanaged&lt;__C.CFErrorRef&gt;(_value: Error Domain=NSOSStatusErrorDomain Code=-2070 "internal error" (internalComponentErr) UserInfo={numberOfErrorsDeep=0, NSDescription=internal error})) The above code works absolutely fine on macOS Sonoma and older OS. This looks like a regression in the Apple API SecKeyCreateRandomKey(). What is a good workaround for this ?
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598
Nov ’24
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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3.1k
Jul ’25
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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2.7k
Jul ’25
Passkey returns unknown error instead of excludedCredentials error when “Saving on another device” option is used.
Hello, I'm receiving an unknown error instead of the excluded credentials error when using the "Save on another device" option for Passkey creation. When creating the ASAuthorizationPlatformPublicKeyCredentialProvider request to pass to the ASAuthorizationController. The excludedCredentials property is used to add a list of credentials to exclude in the registration process. This is to prevent duplicate passkeys from being created if one already exists for the user. When trying to create a duplicate passkey using the same device, the ASAuthorizationControllerDelegate method authorizationController(controller, didCompleteWithError:) is called. The error received has localized description “At least one credential matches an entry of the excludeCredentials list in the platform attached authenticator." When trying to create a duplicate passkey using the “Save on another device” option. The delegate method is called, but the error received has code 1000 ("com.apple.AuthenticationServices.AuthorizationError" - code: 1000). Which maps to the unknown error case in ASAuthorization error type.
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159
May ’25
Appstore submission rejected - Privacy
Please correct the following issues and upload a new binary to App Store Connect. ITMS-91061: Missing privacy manifest - Your app includes “Frameworks/FirebaseCoreDiagnostics.framework/FirebaseCoreDiagnostics”, which includes FirebaseCoreDiagnostics, an SDK that was identified in the documentation as a commonly used third-party SDK. If a new app includes a commonly used third-party SDK, or an app update adds a new commonly used third-party 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. ITMS-91061: Missing privacy manifest - Your app includes “Frameworks/FBLPromises.framework/FBLPromises”, which includes FBLPromises, an SDK that was identified in the documentation as a commonly used third-party SDK. If a new app includes a commonly used third-party SDK, or an app update adds a new commonly used third-party 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. ITMS-91061: Missing privacy manifest - Your app includes “Frameworks/GoogleDataTransport.framework/GoogleDataTransport”, which includes GoogleDataTransport, an SDK that was identified in the documentation as a commonly used third-party SDK. If a new app includes a commonly used third-party SDK, or an app update adds a new commonly used third-party 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. our app is .NET MAUI app so we already addressed this by adding privacyinfo.xcprivacy privacy manifest under platform/ios/resources but still get flagged for this <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>NSPrivacyTracking</key> <false/> <key>NSPrivacyTrackingDomains</key> <array/> <key>NSPrivacyAccessedAPITypes</key> <array> <dict> <key>NSPrivacyAccessedAPIType</key> <string>NSPrivacyAccessedAPICategoryFileTimestamp</string> <key>NSPrivacyAccessedAPITypeReasons</key> <array> <string>C617.1</string> </array> </dict> <dict> <key>NSPrivacyAccessedAPIType</key> <string>NSPrivacyAccessedAPICategorySystemBootTime</string> <key>NSPrivacyAccessedAPITypeReasons</key> <array> <string>35F9.1</string> </array> </dict> <dict> <key>NSPrivacyAccessedAPIType</key> <string>NSPrivacyAccessedAPICategoryDiskSpace</string> <key>NSPrivacyAccessedAPITypeReasons</key> <array> <string>E174.1</string> </array> </dict> <dict> <key>NSPrivacyAccessedAPIType</key> <string>NSPrivacyAccessedAPICategoryUserDefaults</string> <key>NSPrivacyAccessedAPITypeReasons</key> <array> <string>CA92.1</string> </array> </dict> </array> <key>NSPrivacyCollectedDataTypes</key> <array/> </dict> </plist>
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110
Apr ’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?
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1.5k
5h
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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865
Nov ’24
List of Relay Servers for Passkeys
My organization routes all device traffic through a network security device that performs TLS intercept (SSL inspection). As might be expected, this breaks passkey Cross-Device Authentication (CDA) functionality, since the thumbprints don't match end-to-end between the authenticator (iPhone) and the client (laptop). As soon as I disable the VPN tunnel through our security device, the passkey login works as expected. The security team is willing to exclude the relay servers from SSL inspection, but we are unable to find a list of the relevant endpoints. Is there a list of Apple relay servers that are used for passkey tunnelling? We can review the network logs to find the traffic, but I'd prefer an authoritative list. For full context: we are using device-bound passkeys via Microsoft Authenticator to login to Entra but, as I understand it, the passkey is still handled via Apple's standard passkey infrastructure and APIs. Thanks!
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375
Oct ’24
I'm trying to use a keychain-access-group and failing
This is on macOS, not iOS. Not sure if that should make a difference? I have a GUI app and a command line tool (that will run a daemon) that I need to share credentials between. The keys/certs will be stored using the GUI app. But, both tools need to utilize them. guard let accessControl = SecAccessControlCreateWithFlags( nil, kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly, [.privateKeyUsage], nil ) else { throw KeychainCertError.keychainError(errSecAuthFailed, "Failed to create access control for private key") } // Define Key Pair Attributes let privateKeyAttributes: [String: Any] = [ kSecAttrIsPermanent as String: true, kSecAttrApplicationTag as String: privateLabel.data(using: .utf8)!, kSecAttrLabel as String: privateLabel, // kSecAttrAccessControl as String: accessControl, kSecAttrAccessGroup as String: keychainAccessGroup ] With the kSecAttrAccessControl commented out, I am able to generate a private key and generate a self signed certificate that is stored on the user login keychain. If I uncomment that line, I get an error to the affect of "Keychain error (-26275): Failed to generate key pair: A required entitlement isn't present" Also, to share the credentials, don't they need to be NOT on the user keychain for the daemon to access them? Any ideas what I am doing wrong? I think I'm a bit over my head here with the the security, crypto kit and openssl. 😁
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447
Mar ’25