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Authenticator apps provide secure verification codes that act as the second step in 2-step verification. After entering your password, you'll need to enter the code generated by your authenticator app to sign in. Download an authenticator app from the Google Play Store or App Store.
^ a b "Code Generation Network - Frequently Asked Questions". www.codegeneration.net. Archived from the original on 24 October 2007. Retrieved 15 January 2022. ^ "Open source tools are available that make the task of developing passive code generators all but trivial. One such offering is Velocity from the Apache Software Foundation". My.safaribooksonline.com. Retrieved 24 January 2014.
To authenticate, people can use their personal access codes to the device (i.e. something that only the individual user knows) plus a one-time-valid, dynamic passcode, typically consisting of 4 to 6 digits. The passcode can be sent to their mobile device [2] by SMS or can be generated by a one-time passcode-generator app.
Comparison of OTP applications. The following is a general comparison of OTP applications that are used to generate one-time passwords for two-factor authentication (2FA) systems using the time-based one-time password (TOTP) or the HMAC-based one-time password (HOTP) algorithms.
If you use a 3rd-party email app to access your AOL Mail account, you may need a special code to give that app permission to access your AOL account. Learn how to create and delete app passwords.
The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] 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; [9] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...
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 readers, of which ...
Having trouble signing in? Find out how to identify and correct common sign-in issues like problems with your username and password, account locks, looping logins, and other account access errors.