Hi, We use the iOS Keychain in our mobile app to securely store and retrieve data, which is tightly coupled with the initialization of some app features within the application. This issue is encountered during app launch We retrieve during Splash Screen UI controller at viewDidApper() The logic we use to access the Keychain is as follows: NSDate *NSDate_CD; NSString *account = [NSString stringWithUTF8String:@"SOME_KEY_ACCOUNT"]; NSString *attrgen = [NSString stringWithUTF8String:@"SOME_KEY"]; NSMutableDictionary *query = [[NSMutableDictionary alloc] init]; [query setObject:(__bridge id)(kSecClassGenericPassword) forKey:(__bridge id<NSCopying>)(kSecClass)]; [query setObject:attrgen forKey:(__bridge id<NSCopying>)(kSecAttrGeneric)]; [query setObject:(__bridge id)(kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly) forKey:(__bridge id<NSCopying>)(kSecAttrAccessible)]; [query setObject: [NSBundle mainBundle].bundleIdentifier forKey:(__bridge id<NSCopying>)(kSecAttrService)]; [query setObject:account forKey:(__bridge id<NSCopying>)(kSecAttrAccount)]; [query setObject:@YES forKey:(__bridge id<NSCopying>)(kSecReturnAttributes)]; [query setObject:@YES forKey:(__bridge id<NSCopying>)(kSecReturnData)]; CFDictionaryRef valueAttributes = NULL; OSStatus status = SecItemCopyMatching((__bridge CFDictionaryRef)query, (CFTypeRef *)&valueAttributes); NSDictionary *attributes = (__bridge_transfer NSDictionary *)valueAttributes; if(status==errSecSuccess) { NSDate_CD = [attributes objectForKey:(__bridge id)kSecAttrCreationDate]; } else { NSLog(@"Key chain query failed"); } However, some users have reported intermittent failures during app launch. Upon investigation, we discovered that these failures are caused by exceptions thrown by the iOS Keychain, which the app is currently not handling. Unfortunately, we do not log the exception or the Keychain error code in the app logs at the moment, but we plan to implement this logging feature in the near future. For now, we are trying to better understand the nature of these errors. Could you help clarify the following Keychain errors, which might be encountered from the code above? errSecServiceNotAvailable (-25307) errSecAllocate (-108) errSecNotAvailable (-25291) If these errors are encountered, are they typically persistent or are they temporary states that could resolve on their own? Your insights would be greatly appreciated. Thank you.