Regarding your 2FA OTP SMS message for Yahoo! Mail Plus, it would save an extra screen tap when logging in if the OTP appeared BEFORE the DONOTSHARE Warning. Yahoo! is the only app I use where the OTP can't be read from my iPhone or iWatch without this additional step. Please consider this suggestion on your next update. Pass it on.
Just imagine of all the taps you will save in the world everyday!
And .. . thanks for listening.... "I'm feeling much better now, I really do".