What Is Captcha-bros.com?
Captcha-bros.com is one of numerous shady sites which attempt to trick users into subscribing to those sites’ push notifications. Notifications are little pop-ups with news and updates from sites that appear in the bottom right hand corner of the screen on Windows, in the top right hand corner of the screen on macOS, and on the lockscreen on Android. Captcha-bros.com claims that users have to click Allow on its “Show notifications” pop-up in order to prove that they are humans and not robots. If a user clicks Allow, notifications from Captcha-bros.com will start showing up on his or her screen time and again with ads, clickbait links, fake alerts, prompts to download something, etc.