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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. 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

  5. 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.

  6. Jan Koum - Wikipedia

    en.wikipedia.org/wiki/Jan_Koum

    1994–present. Jan Koum ( Ukrainian: Ян Кум; born Yan Borysovych Kum, Ukrainian: Ян Борисович Кум, on February 24, 1976 [1]) is a Ukrainian-American billionaire businessman and computer programmer. He is the co-founder and former CEO of WhatsApp, a mobile messaging app which was acquired by Facebook in 2014 for US$19.3 billion.

  7. Meta Platforms - Wikipedia

    en.wikipedia.org/wiki/Meta_Platforms

    Meta Platforms, Inc., [10] doing business as Meta, [11] and formerly named Facebook, Inc., and TheFacebook, Inc., [12] [13] is an American multinational technology conglomerate based in Menlo Park, California. The company owns and operates Facebook, Instagram, Threads, and WhatsApp, among other products and services. [14]

  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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