Incident: WhatsApp Bug Prevents Sender Names in Notifications on iPhones

Published Date: 2018-06-01

Postmortem Analysis
Timeline 1. The software failure incident of the Whatsapp bug that stopped users from seeing the names of senders in their message notifications happened in June 2018. [71566]
System 1. Whatsapp app for iPhones [71566]
Responsible Organization 1. The software failure incident in this case was caused by a bug in the recent Whatsapp update, specifically impacting iPhone users [71566].
Impacted Organization 1. Whatsapp users, particularly iPhone users, were impacted by the bug that prevented them from seeing the names of senders in their message notifications [71566].
Software Causes 1. The software cause of the failure incident was a bug in the recent Whatsapp update that impacted iPhone users, causing message notifications to display 'Whatsapp' instead of the sender's name [71566].
Non-software Causes 1. The bug was caused by a recent Whatsapp update that impacted iPhone users [71566]. 2. The bug led to users receiving notifications that only displayed 'WhatsApp' instead of the sender's name [71566]. 3. The bug affected the message notifications on Whatsapp, causing frustration among users worldwide [71566]. 4. Users reported the bug on Twitter, seeking solutions and expressing their annoyance [71566]. 5. The bug was fixed by updating to the latest version of Whatsapp or adjusting notification settings on both the app and iPhone [71566].
Impacts 1. Users were unable to see the names of senders in their message notifications on WhatsApp, leading to frustration and confusion [71566]. 2. The bug affected iPhone users specifically, causing notifications to display 'WhatsApp' instead of the sender's name [71566]. 3. The incident prompted users to seek solutions on social media platforms like Twitter, indicating a widespread impact on user experience [71566]. 4. Some users reported that the bug allowed blocked contacts to message them and view their profile information, raising concerns about privacy and security [71566].
Preventions 1. Regular testing and quality assurance procedures before releasing updates could have potentially prevented the software failure incident [71566]. 2. Implementing a more robust change management process to thoroughly review updates for potential bugs or issues before deployment could have helped prevent the bug that caused the issue [71566]. 3. Conducting user acceptance testing to identify any potential issues or bugs that could impact users before rolling out updates could have been beneficial in preventing the bug that led to the software failure incident [71566].
Fixes 1. To fix the bug in Whatsapp that stops users from seeing the names of senders in message notifications, users can go to Whatsapp Settings inside the app and click on Notifications. Then, turn on 'Show Preview'. After that, in the iPhone's settings menu, go to Notifications, select Whatsapp, click on 'Show Previews', and switch it to 'Never' [71566].
References 1. Twitter users [71566] 2. Apple's support forum [71566] 3. WABetaInfo [71566]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization, multiple_organization (a) The software failure incident related to the bug in Whatsapp notifications has happened again at the same organization, Whatsapp. The article mentions that this is the second bug found in a matter of days on Whatsapp, with the previous bug allowing blocked users to message people they had already blocked [71566]. (b) The software failure incident related to the bug in Whatsapp notifications has also happened at multiple organizations or with their products and services. Users on Twitter have reported similar issues with the bug impacting their ability to see sender names in message notifications, indicating that this may not be an isolated incident limited to Whatsapp [71566].
Phase (Design/Operation) design, operation (a) The software failure incident in the article is related to the design phase. The bug that caused Whatsapp users to not see the names of senders in their message notifications was attributed to a recent Whatsapp update [71566]. This indicates that the failure was due to contributing factors introduced during the system development or system updates. (b) The software failure incident in the article is also related to the operation phase. Users reported issues with message notifications displaying only 'WhatsApp' instead of the sender's name, impacting the operation and user experience of the system [71566]. This failure was due to contributing factors introduced by the operation or use of the system.
Boundary (Internal/External) within_system (a) The software failure incident reported in the articles is within_system. The bug that caused Whatsapp users to not see the names of senders in their message notifications was a result of a recent Whatsapp update [71566]. The bug only impacted iPhone users and could be fixed by adjusting settings within the Whatsapp app and the iPhone settings menu [71566]. Additionally, updating to the latest version of Whatsapp helped some users get rid of the bug [71566].
Nature (Human/Non-human) non-human_actions (a) The software failure incident occurring due to non-human actions: The software failure incident reported in the article is a bug in the Whatsapp messaging service that affects iPhone users. The bug causes message notifications to display 'Whatsapp' instead of the sender's name. This bug was likely introduced as a result of a recent Whatsapp update, indicating a failure due to contributing factors introduced without human participation [71566]. (b) The software failure incident occurring due to human actions: The article does not provide information about the software failure incident being caused by contributing factors introduced by human actions.
Dimension (Hardware/Software) software (a) The software failure incident related to hardware: - The article does not mention any hardware-related issues contributing to the software failure incident. Therefore, there is no information available regarding hardware-related factors in this incident. [71566] (b) The software failure incident related to software: - The software failure incident in this case is directly related to a bug in the WhatsApp application that affects iPhone users. The bug causes message notifications to display 'WhatsApp' instead of the sender's name. Users reported this issue after updating to WhatsApp version 2.18.60. The fix for this bug involves changing notification settings within the WhatsApp app and iPhone settings. Users also mentioned that updating to the latest version of WhatsApp resolved the issue for some. This indicates that the root cause of the failure lies within the software of the WhatsApp application. [71566]
Objective (Malicious/Non-malicious) non-malicious (a) The software failure incident reported in the articles is non-malicious. It is a bug in the Whatsapp application that causes users to not see the names of senders in their message notifications on iPhones. Users have reported this issue on Twitter and have sought solutions to fix the bug, such as updating the app or adjusting notification settings [71566].
Intent (Poor/Accidental Decisions) accidental_decisions (a) The software failure incident related to the Whatsapp bug that stopped users from seeing the names of senders in their message notifications was not due to poor decisions but rather a bug introduced by a recent Whatsapp update. Users reported the issue on Twitter and sought solutions to fix the bug, such as updating to the latest version of Whatsapp or adjusting notification settings on their iPhones [71566].
Capability (Incompetence/Accidental) accidental (a) The software failure incident related to development incompetence is not explicitly mentioned in the provided article. Therefore, it is unknown if the incident was due to contributing factors introduced due to lack of professional competence by humans or the development organization. (b) The software failure incident related to an accidental cause is evident in the article. The bug that caused Whatsapp users to not see the names of senders in their message notifications was accidental and appeared to be a result of a recent Whatsapp update. Users reported receiving notifications that only said 'WhatsApp' instead of the sender's name, indicating an accidental introduction of the bug [71566].
Duration temporary (a) The software failure incident described in the articles seems to be temporary. Users were experiencing a bug where they couldn't see the names of senders in their message notifications on WhatsApp. This bug was reported to impact iPhone users and was related to a recent WhatsApp update. Users were able to fix the issue by adjusting their notification settings within the app and on their iPhones. Additionally, updating to the latest version of WhatsApp was mentioned as a solution to the problem. The bug was causing frustration among users, but there were workarounds available to address it [71566].
Behaviour omission, other (a) crash: The software failure incident reported in the articles does not involve a crash where the system loses state and does not perform any of its intended functions. The issue described is related to a bug in the WhatsApp application that affects the display of sender names in message notifications on iPhones [71566]. (b) omission: The software failure incident can be categorized as an omission failure. Users reported that the bug caused their message notifications to display 'WhatsApp' instead of the sender's name, omitting the crucial information about who sent the message [71566]. (c) timing: The software failure incident is not related to a timing failure where the system performs its intended functions but does so too late or too early. The issue is specifically about the incorrect display of sender names in message notifications [71566]. (d) value: The software failure incident does not involve a value failure where the system performs its intended functions incorrectly. The issue is more about the omission of sender names in notifications rather than displaying them incorrectly [71566]. (e) byzantine: The software failure incident is not a byzantine failure where the system behaves erroneously with inconsistent responses and interactions. The bug in WhatsApp causing the sender name omission in notifications is consistent in its impact on affected users [71566]. (f) other: The behavior of the software failure incident can be categorized as a display inconsistency. The bug causes the WhatsApp notifications to show 'WhatsApp' instead of the sender's name, leading to confusion and frustration among users [71566].

IoT System Layer

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

Other Details

Category Option Rationale
Consequence property, delay Property: The software failure incident reported in the article caused users to experience a bug on WhatsApp where they were unable to see the names of senders in their message notifications. This issue impacted the users' ability to identify who sent them messages without opening them, leading to frustration and inconvenience [71566].
Domain information (a) The software failure incident reported in the news article is related to the information industry. The incident involves a bug in the messaging service WhatsApp that affects the display of sender names in message notifications, impacting users' ability to receive and process information effectively [71566].

Sources

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