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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. [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.

  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 May 2012 security researchers noticed that new updates of WhatsApp sent messages with encryption, [40] [41] [42] but described the cryptographic method used as "broken." [43] [44] In August of the same year, the WhatsApp support staff stated that messages sent in the "latest version" of the WhatsApp software for iOS and Android (but not BlackBerry, Windows Phone, and Symbian) were encrypted ...

  5. Jan Koum - Wikipedia

    en.wikipedia.org/wiki/Jan_Koum

    Years active. 1994–present. Jan Borysovych Koum[a] (born 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.

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

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

    WhatsApp: Meta Platforms United States: 2009 2 billion [3] 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 [4] 500 million daily Instagram Stories users [5] 5 TikTok: ByteDance China [6] [7] 2016 1.582 billion [3] 6 WeChat: Tencent China ...

  7. Brian Acton - Wikipedia

    en.wikipedia.org/wiki/Brian_Acton

    Brian Acton is an American computer programmer and Internet entrepreneur who serves as the executive chairman of the Signal Technology Foundation, which he co-founded with Moxie Marlinspike in 2018. [1][2] Acton also serves as interim CEO of Signal Messenger LLC. [3] He was formerly employed at Yahoo!. In 2009, Jan Koum and Acton co-founded ...

  8. Signal Protocol - Wikipedia

    en.wikipedia.org/wiki/Signal_Protocol

    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 later ...

  9. Instant messaging - Wikipedia

    en.wikipedia.org/wiki/Instant_messaging

    WhatsApp by Meta Platforms is the most popular instant messaging network in several countries in South America, Western Europe, Africa, Middle East, South Asia, and Southeast Asia. Facebook Messenger by Meta Platforms is the most popular instant messaging network in North America, Northern Europe, some Central Europe countries, and Oceania.

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