1.  I had made API in Coinbase Pro before just to practice.  Then I deleted it all right after that.  Coinbase confirmed that I do not have any API active.

2.  I have 2FA for Coinbase login, it is Google Authenticator.

3.  I used Lastpass generated password for the Coinbase password.  Needless to say, I do not use the same password anywhere else. 

Thank you for all your help.