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  2. WhatsApp - Wikipedia

    en.wikipedia.org/wiki/WhatsApp

    WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. 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.

  3. Timeline of WhatsApp - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_WhatsApp

    Timeline of WhatsApp. The following is a timeline of WhatsApp, a proprietary cross-platform, encrypted, instant messaging client for smartphones. [1] Jan Koum incorporates WhatsApp in USA. [2] WhatsApp 2.0 is released on the App Store for the iPhone. [3]

  4. Reception and criticism of WhatsApp security and privacy ...

    en.wikipedia.org/wiki/Reception_and_criticism_of...

    In September 2019, WhatsApp was criticized for its implementation of a 'delete for everyone' feature. iOS users can elect to save media to their camera roll automatically. 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.

  5. Meta's WhatsApp down for thousands, Downdetector shows - AOL

    www.aol.com/news/metas-whatsapp-down-thousands...

    April 3, 2024 at 12:49 PM. (Reuters) -Meta Platforms-owned WhatsApp was down for thousands of users on Wednesday, even as the smartphone messaging app resumed service for some people, according to ...

  6. List of social platforms with at least 100 million active ...

    en.wikipedia.org/wiki/List_of_social_platforms...

    WhatsApp: Meta Platforms United States: 2009 2 billion: Had 1 billion daily active users when it had 1.3 billion monthly active users [citation needed] 4 Instagram: Meta Platforms United States: 2010 2 billion: 500 million daily Instagram Stories users: 5 TikTok: ByteDance China: 2016 1.582 billion: 6 WeChat: Tencent China: 2011 1.343 billion: 7

  7. Comparison of cross-platform instant messaging clients

    en.wikipedia.org/wiki/Comparison_of_cross...

    A mobile-focused, phone number-based model operates on the concept of primary and secondary devices. Examples of such messaging services include: WhatsApp, Viber, Line, WeChat, Signal, etc. The primary device is a mobile phone and is required to login and send/receive messages.

  8. List of mergers and acquisitions by Meta Platforms - Wikipedia

    en.wikipedia.org/wiki/List_of_mergers_and...

    v. t. e. Meta Platforms (formerly Facebook, Inc.) is a technology company that has acquired 91 other companies, including WhatsApp. The WhatsApp acquisition closed at a steep $16 billion; more than $40 per user of the platform. Meta also purchased the defunct company ConnectU in a court settlement and acquired intellectual property formerly ...

  9. Signal Protocol - Wikipedia

    en.wikipedia.org/wiki/Signal_Protocol

    Website. signal .org /docs. The Signal Protocol (formerly known as the TextSecure Protocol) is a non- federated cryptographic protocol that provides end-to-end encryption for voice and instant messaging conversations. [2] The protocol was developed by Open Whisper Systems in 2013 [2] and was introduced in the open-source TextSecure app, which ...

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