You are surfing the Internet on your MacBook Pro using the Safari browser. A friend of yours borrowed your laptop yesterday. Any site URL you type into the address bar today sends you to a different website. What is happening here?

Regardless of what you want to see, the perpetrator's only objective is to send you to websites that they want you to see. Like uninstalling an application, in some cases, you can simply remove the redirector by dragging it to the Trash and emptying the Trash. However, sometimes it might require full-scale virus (malware) mitigation to remove the redirector.