What Is Onemacusa.com?
Onemacusa.com is a shady website which tries to get users to accept its notifications request. Onemacusa.com may tell users that they have to allow its notifications in order to prove that they are not robots, open a page, play a video, start a download, etc. If a user does allow Onemacusa.com to send them notifications, those notifications will start popping up periodically in the top-right or bottom-right corner of the screen with ads, prompts to download something, links to shady sites, fake messages, etc.