While browsing the web on your Mac computer, if you are redirected to spam sites or your search engine homepage is changed automatically, then your computer is affected by viruses or malware. Although Apple devices are considered to be less vulnerable to viruses, there are chances for viruses to enter your Mac when you share files from other devices or visit suspicious sites. To stay protected, you should download apps only from trusted sites. To download an app, launch the App Store and search for the application, and then download it.
Adware and browser hijackers now focus on macOS to infect them. This creates web traffic and collects sales leads for dummy sites. Meanwhile, hijackers will display ads on your browser. If a malicious program has been installed on your computer, unwanted advertisements may be displayed on the screen, or sponsored links may appear on your browser. If you see any unusual activity on your browser or elsewhere, there are chances that your Mac computer is affected by a virus or malware. If you see MAC OS Malware advertisement, consider the steps that are given below to fix the issue.
Step 1: Remove malicious profiles
Step 2: Remove malicious apps
Step 3: Remove Browser hijackers