Eli5: Why do some text codes have a letter in front of them?

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Google sends an identity verification text to my cell. The code is something like G- 123456

When I go to put it in the website the G is already typed and I just have to put in the number. I saw this with another app recently. Maybe it was Venmo? Same thing. Text had the letter but the app already had the letter typed in.

If they are already putting the letter in for me then why is it there? I assume it serves some purpose for the website but what is it?

Thanks!

In: 41

4 Answers

Anonymous 0 Comments

If you’re requesting a varification on your phone, the sender app is actually able to automatically read the incoming SMSs and auto populate the verification code, they do this by looking for that “G- 6 numbers” format so that they only pick up verification codes sent by themselves.

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