On November 18, 2014, Open Whisper Systems announced a partnership with WhatsApp to provide end-to-end encryption by incorporating the encryption protocol used in Signal into each WhatsApp client platform. When a user sends a message, it is stored on a WhatsApp server, which tries to forward it to the addressee, and repeatedly requests acknowledgement of receipt. WhatsApp's voice codec is Opus, which uses the modified discrete cosine transform (MDCT) and linear predictive coding (LPC) audio compression algorithms. Some devices using dual SIMs may not be compatible with WhatsApp, though there are unofficial workarounds to install the app. Similarly to WhatsApp for web, Windows, Mac, and smartwatches, the iPad is a type of linked device that connects and syncs to WhatsApp running on a smartphone. In July 2025, WhatsApp stopped developing the Windows UWP-based app due to poor support and deprecation of the UWP framework by Microsoft.
With Wednesday's gains, shares of Dollar Tree have added half their value in 2025. Dollar Tree (DLTR) reported adjusted earnings per share of $1.21 on revenue that surged 9.4% year-over-year to $4.75 billion in the third quarter. CEO Marc Benioff said Salesforce's Agentforce, which helps companies build customized AI agents, was a major driver of growth, along with the company's data products. The customer relationship management software leader reported adjusted earnings per share of $3.25 for its fiscal 2026 third quarter, well above the $2.86 analysts were looking for. Could a bit of fresh momentum from Salesforce's AI offerings be just what the company needed to kick-start a recovery in its stock? The shares included in it are weighted according to price; the index level represents the average of the shares included in it.

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WhatsApp now provides two official methods — the WhatsApp Desktop app and WhatsApp Web — both of which are fast, modern, and fully integrated with Windows 11. Both Telegram and Signal in particular were reported to get registration spikes during WhatsApp outages and controversies. In January 2020, WhatsApp reached over 5 billion installs on Google Play Store making it only the second non-Google app to achieve this milestone.
The updated interface now allows users to set timers ranging from a few hours to a month. WhatsApp Desktop supports calls without keeping your phone online. WhatsApp Web is a browser-based version — perfect for quick access or when you’re on a shared PC.

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The enforcement of the privacy policy was postponed from February 8 to May 15, 2021, WhatsApp announced they had no plans to limit the functionality of the app for those who did not approve the new terms. As the complaint was heavily redacted due to being an ongoing case, it did not disclose whether this was alleged tampering with the app's end-to-end encryption, or Google accessing user backups.clarification needed When a user deletes media for everyone, WhatsApp does not delete images saved in the iOS camera roll and so those users are able to keep the images. In November 2020, UPI payments via WhatsApp were initially restricted to 20 million users, and to 100 million users in April 2022, and became generally available to everyone in August 2022. The feature has to be betory casino no deposit bonus turned on by the user and provides the option to encrypt the backup either with a password or a 64-digit encryption key.

• The updated interface now allows users to set timers ranging from a few hours to a month.
• The application can store encrypted copies of the chat messages onto the SD card, but chat messages are also stored unencrypted in the SQLite database file “msgstore.db”.
• As of 2025, the software requires at least Android version 5.0 or iOS version 15.1 respectively.
• 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.
• This lets users share videos of themselves more quickly, and without adding anything to their device’s gallery.
• In November 2017, WhatsApp implemented a feature giving users seven minutes to delete messages sent by mistake.

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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". Days after the announcement, WhatsApp users experienced a loss of service, leading to anger across social media. Facebook paid $4 billion in cash, $12 billion in Facebook shares, and an additional $3 billion in restricted stock units granted to WhatsApp's founders Koum and Acton. Some time in 2013 WhatsApp acquired Santa Clara–based startup SkyMobius, the developers of Vtok, a video and voice calling app. To cover the cost of sending verification texts to users, WhatsApp was changed from a free service to a paid one.

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On November 25, 2019, WhatsApp announced an investment of $250,000 through a partnership with Startup India to provide 500 startups with Facebook ad credits of $500 each. Both airlines had previously launched customer services on the Facebook Messenger platform. In September 2017, WhatsApp's co-founder Brian Acton left the company to start a nonprofit group, later revealed as the Signal Foundation, which developed the WhatsApp competitor Signal. On May 18, 2017, the European Commission announced that it was fining Facebook €110 million for "providing misleading information about WhatsApp takeover" in 2014. (The word "telegram" appeared in WhatsApp's code.) Some considered it an anti-competitive measure; WhatsApp offered no explanation. In April 2015, Forbes predicted that between 2012 and 2018, the telecommunications industry would lose $386 billion because of "over-the-top" services like WhatsApp and Skype.

• If a retailer had wildly popular mall stores in the early 2000s, chances are their stock is soaring lately.
• According to the Financial Times, WhatsApp “has done to SMS on mobile phones what Skype did to international calling on landlines”.
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• Later in September 2018, WhatsApp introduced group audio and video call features.
• In December 2015, it was reported that terrorist organization ISIS had been using WhatsApp to plot the November 2015 Paris attacks.

In 2018, it was reported that around 500,000 National Health Service (NHS) staff used WhatsApp and other instant messaging systems at work and around 29,000 had faced disciplinary action for doing so. At the beginning of 2022, it was revealed that San Diego–based startup Boldend had developed tools to hack WhatsApp's encryption, gaining access to user data, at some point since the startup's inception in 2017. On November 29, 2021, an FBI document was uncovered by Rolling Stone, revealing that WhatsApp responds to warrants and subpoenas from law enforcement within minutes, providing user metadata to the authorities.
This divergence highlights a market grappling with varied corporate news and sector-specific pressures on Thursday. This environment suggested that while a broader policy shift was on investors' minds, individual company performance and sector-specific movements were key drivers for the day. This anticipation was fueled by mixed signals from recent jobs data, which presented a "riddle for the Fed" with rising layoffs but falling weekly jobless claims. Welcome to our coverage of the Dow Jones Industrial Average (DJIA) today, a key barometer of the U.S. stock market's health. Meta Platforms Inc. jumped as Bloomberg News reported executives are considering budget cuts for the metaverse group.

Rollout is gradual, with availability expanding to more iOS devices.

WhatsApp 2.0, released for iPhone in August 2009, featured a purpose-designed messaging component; the number of active users suddenly increased to 250,000. It became the world's most popular messaging application in 2015, with 900 million users, and had more than 2 billion active users worldwide in February 2020. As of May 2025, the service had 3 billion monthly active users, making it the most used messenger app. The shares were up close to 5% in recent trading, making Marvell one of the best-performing stocks in the Nasdaq Wednesday. Microchip Technology (MCHP) was the best-performing stock in the S&P 500 as shares climbed nearly 10% after the chipmaker boosted its guidance on strong bookings and an improved backlog. A move of that size from the stock's recent level around $235 could push shares up to $251 at the high end, or drag them down to $218 at the low end, which would be Salesforce's lowest level in over a year.

At the time, it was the largest acquisition of a venture-capital-backed company in history. On February 19, 2014, one year after the venture capital financing round at a $1.5 billion valuation, Facebook, Inc. (now Meta Platforms) agreed to acquire the company for US$19 billion, its largest acquisition to date. That year, the company had $148 million in expenses and a net loss of $138 million. In April 2011, Sequoia Capital invested about $8 million for more than 15% of the company, after months of negotiation by Sequoia partner Jim Goetz. Koum then hired a friend in Los Angeles, Chris Peiffer, to develop a BlackBerry version, which arrived two months later.