If you’re using Google Chrome, Safari, Firefox, or another browser on your Mac and your browser produces search results in Yahoo without your consent, your computer has likely been infected with the Yahoo Search redirect virus. If you have not set your default search engine to be Yahoo, then your default search engine should be Google on all three ‌browsers. If you are constantly being redirected to Yahoo, ‌take steps to rid your Mac of this virus that could track your browsing history, targeting you with spammy ads, and possibly stealing your personally identifiable information.