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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   They can generate and print their own QR codes for others to scan and use by visiting one of several pay or free QR code-generating sites or apps. Google had an API, now deprecated, to generate QR codes, [24] and apps for scanning QR codes can be found on nearly all smartphone devices. [25]

3. Scan (company) - Wikipedia

   en.wikipedia.org/wiki/Scan_(company)

   Scan builds products and services related to 'scannable' items such as QR codes. [4] Scan's products consist of mobile applications that consumers use for reading a variety of physical codes such as QR codes, NFC, and machine-recognizable images (Computer Vision). [5]

4. QR code payment - Wikipedia

   en.wikipedia.org/wiki/QR_code_payment

   QR code payment. A QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. [1] This is an alternative to doing electronic funds transfer at point of sale using a payment terminal. [2] This avoids a lot of the infrastructure traditionally associated with electronic payments such as payment ...

5. What you need to know about QR code scams and how to ... - AOL

   www.aol.com/know-qr-code-scams-stay-204500807.html

   Fake QR codes can look just like legitimate ones, so watch for any irregularities before you scan. If you notice that a menu or poster includes a QR code with bumps, peeled edges, or that appears ...

6. Add or disable 2-step verification for extra security - AOL Help

   help.aol.com/articles/2-step-verification...

   1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Add or disable 2-step verification for extra security. Add an extra security step to sign into your account with 2-step verification. Find out how to turn on 2-step verification and receive a verification code, and ...

7. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode ...