how do i remove spyware from mac

Email messages are not capable of holding Safari hostage. Whatever it said is a lie.

Let's try it this way. Assuming you are able to load web pages at all (such as this one), please read How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report - Apple Community. That User Tip describes EtreCheck, which is a data-gathering and -reporting tool that you can download and run.

Post its report in a reply to this Discussion, as explained in that User Tip.

What spyware did you install?

Kill the process in activity monitor app. look for the process to kill most likely safari or safari networking. Erase cookies in safari reboot computer