WICG / sms-one-time-codes

A way to format SMS messages for use with browser autofill features such as HTML’s autocomplete=one-time-code.
https://wicg.github.io/sms-one-time-codes/
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ExampleCo staff won't / will ask for this code. #14

Open wgknowles opened 2 years ago

wgknowles commented 2 years ago

OTP codes have two common use cases:

1) Verifying the identity of a user that contacts the support team (phone / chat) 2) Verifying the identity of a user logging in / performing step-up authentication on a system

Malicious actors very commonly get in touch with an end-user under the guise of being a legitimate support team member and ask the end-user to provide the OTP code that they just sent. Appending the following text will serve as a mitigation to users falling for this attack vector:

1) "ExampleCo staff will ask for this code" 2) "ExampleCo staff will NOT ask for this code"