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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.

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

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

   WhatsApp introduces Read Receipts, which show when a message is read by a recipient. Within a week, WhatsApp introduces an update allowing users to disable this feature. Jan 21, 2015: WhatsApp launches WhatsApp Web, a web client which can be used through a web browser by syncing with the mobile device's connection. Jan 21, 2015

4. Multi-factor authentication - Wikipedia

   en.wikipedia.org/wiki/Multi-factor_authentication

   Multi-factor authentication is typically deployed in access control systems through the use, firstly, of a physical possession (such as a fob, keycard, or QR-code displayed on a device) which acts as the identification credential, and secondly, a validation of one's identity such as facial biometrics or retinal scan. This form of multi-factor ...

5. WhatsApp officially announces QR codes and animated stickers

   www.aol.com/whatsapp-officially-announces-qr...

   WhatsApp made it easier to focus on a single participant during a group call — just press and hold on their video. WhatsApp today announced a slew of new features that are set to roll out ...

6. 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. 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; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

7. End-to-end encryption - Wikipedia

   en.wikipedia.org/wiki/End-to-end_encryption

   End-to-end encryption (E2EE) is a private communication system in which only communicating users can participate.As such, no one, including the communication system provider, telecom providers, Internet providers or malicious actors, can access the cryptographic keys needed to converse.

8. The Jester (hacktivist) - Wikipedia

   en.wikipedia.org/wiki/The_Jester_(hacktivist)

   On March 5, 2012, The Jester changed his Twitter account avatar from his signature Jester icon to a QR code without comment or explanation. Scanning a QR code redirects a browser to a website. Scanning The Jester's icon led to a URL where he had an image of his signature Jester icon and an embedded, hidden code that allegedly exploited a ...

9. UC Browser - Wikipedia

   en.wikipedia.org/wiki/UC_Browser

   UC Browser is a web browser developed by mobile internet company UCWeb, a subsidiary of the Alibaba Group. It was the most popular mobile browser in India , Indonesia , and Mali , as well as the second-most popular one in China as of 2017.