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2. WhatsApp - Wikipedia

   en.wikipedia.org/wiki/WhatsApp

   WhatsApp Web's user interface is based on the default Android one and can be accessed through web.whatsapp.com. Access is granted after the users scan their personal QR code through their mobile WhatsApp application. There are similar solutions for macOS, such as the open-source ChitChat, previously known as WhatsMac. [197] [198] [199]

3. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

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. Telegram (software) - Wikipedia

   en.wikipedia.org/wiki/Telegram_(software)

   Telegram Messenger, commonly known as Telegram, is a cloud-based, cross-platform, instant messaging (IM) service. It was originally launched for iOS on 14 August 2013 and Android on 20 October 2013.

6. WeChat - Wikipedia

   en.wikipedia.org/wiki/WeChat

   The company also provides WeChat for Web, a web-based client with messaging and file transfer capabilities. Other functions cannot be used on it, such as the detection of nearby people, or interacting with Moments or Official Accounts. To use the Web-based client, it is necessary to first scan a QR code using the phone app. This means it is not ...

7. 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]

8. Automatic identification and data capture - Wikipedia

   en.wikipedia.org/wiki/Automatic_identification...

   Automatic identification and data capture. Automatic identification and data capture ( AIDC) refers to the methods of automatically identifying objects, collecting data about them, and entering them directly into computer systems, without human involvement. Technologies typically considered as part of AIDC include QR codes, [ 1] bar codes ...

9. Signal (software) - Wikipedia

   en.wikipedia.org/wiki/Signal_(software)

   To verify that a correspondent is really the person that they claim to be, Signal users can compare key fingerprints (or scan QR codes) out-of-band. [123] The platform employs a trust on first use mechanism in order to notify the user if a correspondent's key changes. [123]