Fake SMS comes as Two Step Verification SMS Code
Thank you Yahoo! for two step verification for safety. But recently I have experienced that every time when I select the option of SMS in two step verification, in first place fake SMS with verification code comes which is not from Yahoo!. I used to ignore it and ask for resend the code. In second time a correct Yahoo! verification code comes via SMS by saying ******** is your Yahoo verification code.
Recently I was getting call from another country (+92) even if I have asked for SMS code. When I have reported to helpline number, for few days everything goes normal. But right now when I had logged in, first fake SMS came with verification code and when I asked for reverification then the original Yahoo! verification came. So Yahoo! please take my feedback on top priority and take necessary action.

Hi there,
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Thank you,
Yahoo Mail team