Hi Dave,
Someone on an unrecognized device attempted to sign in to your Yahoo account.
This sign in attempt was made on:
When
If this was you, you're all set!
Didn’t sign in recently?
Review your account activity and remove the devices and apps that you don’t recognize.
Thanks,
Yahoo
We will never ask you for your password in an email. If you don’t trust a link in an email, go directly to the normal sign in page via yahoo.com.