I am probably beating a dead horse, and here we go again. It didn't matter how strong your password was, your Yahoo account has been compromised anyways by a hack, back  in 2014,  no less. Technically its too late to change your password, since its been sitting out there for the past 2 years along with your account information. I changed my yahoo password anyways, but I think I need to closely examine my credit report. Also I think I need to institute a personal password policy, change them every week or sooner.