If your search queries are redirected through Yahoo Search, it means that a browser hijacker has been installed on your device. However, Yahoo Search is not a browser hijacker and it is not malicious in any way. Malware will change your web browser settings and Yahoo Search will be displayed. Cybercriminals are now using Yahoo Search to create revenue from each search. When a Yahoo Search browser hijacker is installed on your computer, your browser’s search queries are redirected through Yahoo’s website. You have to be careful while installing software. You will be prompted for optional installations as well. Ensure to install only the required software.
You have now successfully removed the Yahoo search redirects from your Mac.