Did anyone of you guys faced issues with notifications of WhatsApp messenger application? Even if I receive any messages, it will directly go into silent notification. It will show up in my notification bar and my always on display ( as just an app banner) and will not even use glyph lights for that.
WhatsApp is a free cross-platform messaging service. It lets users of iPhone and Android smartphones and Mac and Windows PC call and exchange text, photo, audio and video messages with others across the globe for free, regardless of the recipient's device. WhatsApp uses a Wi-Fi connection to communicate cross-platform, unlike Apple iMessage and Messages by Google, which require cellular networks and Short Message Service (SMS).
WhatsApp can be downloaded on any smartphone with a SIM card, internet connection and phone number. Once set up on a smartphone, a WhatsApp user can link their account to a desktop version of the app on a tablet or computer.
WhatsApp works like other Wi-Fi-exclusive messaging services, such as Facebook Messenger, which is accessible to both phones and computers. However, instead of requiring an account with a username and password, WhatsApp identifies users by their phone number. Anyone in the user's phone contact list already using WhatsApp is automatically added to the WhatsApp contact list, making it easy to find and message friends and family across platforms.
WhatsApp users can see how much data they are using in the Data and Storage Usage section in their WhatsApp Settings. WhatsApp automatically downloads all media received to a user's phone and stores it in the device's photo gallery. This can take up a lot of data.
Desktop version. Like Apple iMessage, WhatsApp offers a downloadable desktop version of the app for Mac and Windows. WhatsApp's desktop app is different from Messages by Google's desktop version which can only be accessed in a web browser. This makes accessing messages easy if a user's phone isn't working or is unable to send and receive messages. However, the desktop version does not allow voice or video calling.
Like other messaging services, WhatsApp is vulnerable to phishing security risks. WhatsApp users also face a unique threat: By default, WhatsApp downloads all media sent to a user's mobile device. With this setting turned on, malware-encrypted files can be sent to a WhatsApp account through spyware programs like Pegasus possible for the sender to hack the targeted mobile phone. Once hacked, Pegasus gains access to all data stored on a user's device and can even record conversations and take photos with the user's camera. In 2018, Crown Prince Mohammed bin Salman allegedly used this method to hack Amazon founder Jeff Bezos's phone, according to a statement by United Nations special rapporteurs David Kaye and Agnes Callamard.
WhatsApp cannot access the content of user messages, but it said it shares user metadata with its parent company, Meta -- formerly Facebook -- and other Meta companies. The metadata it shares includes users' phone numbers, profile photos, activity statuses, send dates of WhatsApp messages and IP addresses used. In some cases, Meta also provides user metadata to authorities serving warrants and subpoenas, and it has surveilled users at the direction of the U.S. Drug Enforcement Administration.
WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta.[14] It allows users to send text, voice messages and video messages,[15] make voice and video calls, and share images, documents, user locations, and other content.[16][17] WhatsApp's client application runs on mobile devices, and can be accessed from computers.[18] The service requires a cellular mobile telephone number to sign up.[19] In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client.[20][21]
WhatsApp was founded in February 2009 by Brian Acton and Jan Koum, former employees of Yahoo!. A month earlier, after Koum purchased an iPhone, he and Acton decided to create an app for the App Store. The idea started off as an app that would display statuses in a phone's Contacts menu, showing if a person was at work or on a call.[62]
The acquisition was influenced by the data provided by Onavo, Facebook's research app for monitoring competitors and trending usage of social activities on mobile phones, as well as startups that were performing "unusually well".[78][79][80]
Three days after announcing the Facebook purchase, Koum said they were working to introduce voice calls. He also said that new mobile phones would be sold in Germany with the WhatsApp brand, and that their ultimate goal was to be on all smartphones.[85]
In January 2015, WhatsApp launched a web client that allowed users to scan a QR code with their mobile app, mirroring their chats to their browser. The web client was not standalone, and required the user's phone to stay on and connected to the internet. It was also not available for iOS users on launch, due to limitations from Apple.[133][134]
In July 2021, WhatsApp announced forthcoming support for sending uncompressed images and videos in 3 options: Auto, Best Quality and Data Saver,[152] and end-to-end encryption for backups stored in Facebook's cloud.[153] The company was also testing multi-device support, allowing Computer users to run WhatsApp without an active phone session.[154]
In August 2021, WhatsApp launched a feature that allows chat history to be transferred between mobile operating systems. This was implemented only on Samsung phones, with plans to expand to Android and iOS "soon".[155]
In April 2023, the app rolled out a feature that would allow account access across multiple phones, in a shift that would make it more like competitors. Messages would still be end-to-end encrypted.[159]WhatsApp officially rolled out the Companion mode for Android users, allowing you to link up to five Android phones to a single account. Now, the feature is also made available to iOS users, allowing them to link up to four iPhones.[160]
After months at beta stage, the official first release of WhatsApp for iOS launched in November 2009. In January 2010, support for BlackBerry smartphones was added; and subsequently for Symbian OS in May 2010, and for Android OS in August 2010. In August 2011, a beta for Nokia's non-smartphone OS Series 40 was added. A month later, support for Windows Phone was added, followed by BlackBerry 10 in March 2013.[177] In April 2015, support for Samsung's Tizen OS was added.[178] The oldest device capable of running WhatsApp was the Symbian-based Nokia N95 released in March 2007, but support was later discontinued.
In January 2021, the limited Android beta version allowed users to use WhatsApp Web without having to keep the mobile app connected to the Internet. In March 2021, this beta feature was extended to iOS users.[197] However, linked devices (using WhatsApp Web, WhatsApp Desktop or Facebook Portal) will become disconnected if people don't use their phone for over 14 days.[198] The multi-device beta can only show messages for the last 3 months on the web version, which was not the case without the beta because the web version was syncing with the phone.[199]Since April 2022, the multi-device beta is integrated by default in WhatsApp and users cannot check old messages on the web version anymore.[200][201]
WhatsApp uses a customized version of the open standard Extensible messaging and presence protocol (XMPP).[210] Upon installation, it creates a user account using the user's phone number as the username (Jabber ID: [phone number]@s.whatsapp.net).
WhatsApp software automatically compares all the phone numbers from the device's address book with its central database of WhatsApp users to automatically add contacts to the user's WhatsApp contact list. Previously the Android and Nokia Series 40 versions used an MD5-hashed, reversed-version of the phone's IMEI as password,[211] while the iOS version used the phone's Wi-Fi MAC address instead of IMEI.[212][213] A 2012 update implemented generation of a random password on the server side.[214] Alternatively a user can send to any contact in the WhatsApp database through the url =[phone number] where [phone number] is the number of the contact including the country code.
In July 2017, WhatsApp received permission from the National Payments Corporation of India (NPCI) to enter into partnership with multiple Indian banks,[238] for transactions over Unified Payments Interface (UPI),[239] which relies on mobile phone numbers to make account-to-account transfers.[240] In November 2020, UPI payments via WhatsApp were initially restricted to 20 million users,[241] and to 100 million users in April 2022,[242] and became generally available to everyone in August 2022.[243]
For security purposes, since February 1, 2020, WhatsApp has been made unavailable on smartphones using legacy operating systems like Android 2.3.7 or older and iPhone iOS 8 or older that are no longer updated by their providers.[276]
In May 2019, WhatsApp was attacked by hackers who installed spyware on a number of victims' smartphones.[293] The hack, allegedly developed by Israeli surveillance technology firm NSO Group, injected malware onto WhatsApp users' phones via a remote-exploit bug in the app's Voice over IP calling functions. A Wired report noted the attack was able to inject malware via calls to the targeted phone, even if the user did not answer the call.[294]
In January 2020, a digital forensic analysis revealed that the Amazon founder Jeff Bezos received an encrypted message on WhatsApp from the official account of Saudi Arabia's Crown Prince Mohammed bin Salman. The message reportedly contained a malicious file, the receipt of which resulted in Bezos' phone being hacked. The United Nations' special rapporteur David Kaye and Agnes Callamard later confirmed that Jeff Bezos' phone was hacked through WhatsApp, as he was one of the targets of Saudi's hit list of individuals close to The Washington Post journalist Jamal Khashoggi.[301]
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