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authenticator

[ aw-then-ti-key-ter ]

noun

  1. a person or thing that authenticates.
  2. Cryptography. a code used to authenticate a previously transmitted code.


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Word History and Origins

Origin of authenticator1

First recorded in 1860–65; authenticate + -or 2
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Example Sentences

You’ll be able to choose between receiving a code on your phone via SMS, getting a prompt on another of your devices, setting up an authenticator app, or a USB security key.

Microsoft accounts also let you go passwordless when using their authenticator app.

You go to log in to a site or fire up an app, and instead of being asked to enter a password you get a prompt to enter a six-digit code from your authenticator app, tap a notification on your phone, or click a link sent to your email.

That’s not the case with an authenticator app, which makes it more secure.

Many services still use this method, but it’s not as secure as using an authenticator app.

According to one authenticator of sports memorabilia, his clients are not optimistic.

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