Incident: Default Settings Reset Bug in iOS 14 Update.

Published Date: 2020-09-24

Postmortem Analysis
Timeline 1. The software failure incident of iPhone users experiencing their settings being reset to Apple's default email and default web browser options happened last week as per the article [105271]. 2. Published on 2020-09-24. 3. The incident occurred in September 2020.
System 1. Default browser and mail settings in iOS 14.0.0 [105271] 2. Camera previews on iPhone 7 and iPhone 7 Plus [105271] 3. Wi-Fi connectivity on iPhones [105271] 4. Sending emails with other mail providers on iPhones [105271] 5. Display of images in the News app on iPhones [105271]
Responsible Organization 1. Apple [105271]
Impacted Organization 1. iPhone users were impacted by the software failure incident reported in Article 105271. [105271]
Software Causes 1. The software cause of the failure incident was a major bug in the iOS update that reset default browser and mail settings for iPhone users [105271].
Non-software Causes 1. User complaints about settings being reset to default email and web browser options [105271]. 2. Camera previews not displaying on iPhone 7 and iPhone 7 Plus [105271]. 3. iPhones having issues connecting to Wi-Fi [105271]. 4. Problem with sending emails using other mail providers [105271]. 5. Images not appearing in the News widget [105271].
Impacts 1. Users' settings were reset to Apple's default email and default web browser options, causing inconvenience and frustration [105271]. 2. Tapping on links would default back to Safari rather than Chrome, disrupting user preferences and workflows [105271]. 3. Camera previews were not displaying on iPhone 7 and iPhone 7 Plus, potentially affecting users' ability to take photos [105271]. 4. iPhones were facing issues connecting to Wi-Fi, impacting internet connectivity for users [105271]. 5. Users were unable to send emails with other mail providers, affecting communication capabilities [105271]. 6. Images were not appearing in the News widget, potentially affecting the user experience and access to information [105271].
Preventions 1. Conducting thorough testing before releasing the software update could have potentially prevented the software failure incident [105271]. 2. Implementing a more robust quality assurance process to catch and address bugs before they impact users could have helped prevent the issue [105271]. 3. Utilizing beta testing with a diverse group of users to identify and address potential issues before a wide release could have been beneficial in preventing the bug [105271].
Fixes To fix the software failure incident where iPhone users experienced their settings being reset to Apple's default email and default web browser options after restarting their phones, the following actions could be taken: 1. Apply the iOS 14.0.1 update issued by Apple, which specifically addresses the issue causing default browser and mail settings to reset after restarting the iPhone [105271].
References 1. User complaints from iPhone users about their settings being reset to default email and web browser options [105271] 2. Apple's official update notes for iOS 14.0.1 detailing the bug fixes [105271]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident of default browser and mail settings resetting after restarting the iPhone has happened again within the same organization, Apple. Users found this major bug in the previous iOS update, and Apple issued a fix with the iOS 14.0.1 update [105271].
Phase (Design/Operation) design, operation (a) The software failure incident described in the article is related to the design phase. The failure was caused by a major bug in the previous iOS update that reset users' default email and web browser settings to Apple's defaults. This issue was addressed in the iOS 14.0.1 update, indicating that the problem originated from the system development or update process [105271]. (b) Additionally, the article mentions that the update also fixed issues preventing iPhones from connecting to Wi-Fi and sending emails with other mail providers. These operational issues suggest that there were contributing factors introduced by the operation or use of the system that led to these failures [105271].
Boundary (Internal/External) within_system (a) The software failure incident described in Article 105271 is within_system. The failure was caused by a bug within Apple's iOS update that reset users' default browser and mail settings to Apple's defaults, leading to issues like links defaulting back to Safari instead of the user's preferred browser like Chrome. Additionally, the update fixed various other internal issues such as camera previews not displaying, Wi-Fi connectivity problems, email sending issues, and image display problems in the News app. [105271]
Nature (Human/Non-human) non-human_actions (a) The software failure incident in Article 105271 was due to non-human actions. The major bug that caused users' settings to reset to Apple's default email and default web browser options was not a result of human actions but rather a technical issue within the iOS update itself. This bug led to tapping on links defaulting back to Safari instead of the user's preferred browser like Chrome. The update notes for iOS 14.0.1 specifically mention fixing the issue that caused default browser and mail settings to reset after restarting the iPhone, indicating a technical glitch rather than human error [105271].
Dimension (Hardware/Software) software (a) The software failure incident mentioned in Article #105271 is related to contributing factors originating in software. The incident involved a major bug in Apple's iOS update that caused users' settings to reset to default email and web browser options, as well as issues with camera previews, Wi-Fi connectivity, email sending, and image display within the News app. These issues were addressed and fixed in the subsequent iOS 14.0.1 update, indicating that the root cause of the failure was software-related [105271].
Objective (Malicious/Non-malicious) non-malicious (a) The software failure incident described in Article 105271 is non-malicious. It was a bug in the iOS update that caused default browser and mail settings to reset after restarting the iPhone, leading to user inconvenience and frustration. Apple addressed this issue in the iOS 14.0.1 update along with other related issues like camera previews not displaying, Wi-Fi connectivity problems, email sending issues, and image display problems in the News app. The bug was not introduced with the intent to harm the system but rather as an unintended consequence of the update [105271].
Intent (Poor/Accidental Decisions) accidental_decisions (a) The software failure incident described in Article 105271 was not due to poor decisions but rather a bug in the iOS update released by Apple. Users reported that their settings had been reset to Apple's default email and default web browser options, which was fixed in the subsequent update (iOS 14.0.1) [105271].
Capability (Incompetence/Accidental) development_incompetence, accidental (a) The software failure incident related to development incompetence is evident in the article as Apple issued an iOS update to fix a major bug that caused users' settings to reset to default email and web browser options after restarting their iPhones. This indicates a lack of professional competence in the development process that led to this issue [105271]. (b) The software failure incident related to accidental factors is seen in the article as users began complaining about their settings being reset to default options without their intentional actions. This accidental change in settings led to tapping on links defaulting back to Safari instead of Chrome, indicating an unintentional introduction of the issue [105271].
Duration temporary The software failure incident reported in Article 105271 was temporary. The article mentions that iPhone users began complaining about their settings being reset to Apple's default email and default web browser options after the previous update. This indicates that the failure was due to specific circumstances introduced by the previous update, which was then fixed by Apple with the release of the iOS 14.0.1 update [105271].
Behaviour omission, value, other (a) crash: The software failure incident mentioned in the article is not related to a crash where the system loses state and does not perform any of its intended functions. Instead, the issue reported involved default browser and mail settings resetting after restarting the iPhone [105271]. (b) omission: The software failure incident is related to omission, as users complained that their settings had been reset to Apple's default email and default web browser options, and tapping on links would default back to Safari rather than Chrome [105271]. (c) timing: The software failure incident is not related to timing, where the system performs its intended functions correctly but too late or too early. (d) value: The software failure incident is related to value, as the system was performing its intended functions incorrectly by resetting default browser and mail settings after restarting the iPhone [105271]. (e) byzantine: The software failure incident is not related to a byzantine behavior, where the system behaves erroneously with inconsistent responses and interactions. (f) other: The other behavior observed in the software failure incident is the issue preventing camera previews from displaying on certain iPhone models, the problem preventing iPhones from connecting to Wi-Fi, the issue preventing sending emails with other mail providers, and the problem preventing images from appearing in the News wide [105271].

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence property The consequence of the software failure incident described in the article [105271] is mainly related to option (d) property. Users experienced issues such as their settings being reset to default email and web browser options, which impacted their personal preferences and configurations. Additionally, there were issues preventing iPhones from connecting to Wi-Fi, sending emails with other mail providers, and displaying images in the News app, which could affect users' ability to access and interact with digital content on their devices.
Domain information (a) The software failure incident reported in Article 105271 is related to the information industry. The incident involved a bug in Apple's iOS update that caused users' default browser and mail settings to reset, impacting how users access and interact with information on their iPhones [105271].

Sources

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