Can you please revert to the old way of signing in over a computer?
Why re you asking us to validate the sign in request from a mobile phone or email or text. This is ridiculous and an aboslute waste of time, especially that we access the app directly. So security is not the issue here.
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It sounds like you have Yahoo Account Key enabled. You can turn this off by following the steps in this link:
https://help.yahoo.com/kb/account/sln25921.html
Thank you!
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