Most preferably, you should leave the task of removing adware from Mac to a dedicated Mac adware cleaner since these adware removal tools for Mac are developed by experts.
The question is when should you be on guard and take the necessary steps to remove adware from Mac. As Ian Davis, a senior threat researcher at BlackBerry states “Historically MacOS threats mainly centered around adware and trojanized downloaders of well-known software,” and adware, although less lethal than malware, still fools Mac users and poses a threat.