Why can't I log into Yahoo mail?

Episode 1684
Jim fromJohn's friend is trying to log into mail.yahoo.com and he can't sign in, but his wife can. Leo says that Yahoo wants to do two-factor authentication now, so it may be that he has to change his password and update his settings. There may be issues with his Verizon.net email, which is preventing him from accessing his Yahoo account. Verizon also owns AOL. What Leo recommends is getting the hell away from Yahoo and going to Gmail. What Leo suspects is that Yahoo deactivated his account due to suspicious activity.