Malware/Adware in my Mac

What makes the User believe there is Malware or Adware on this computer ?

Details and context will really help

The The Built in Security  is all that is required to protect the computer.

The below application mentioned appears to be already installed and used on this computer

There is Adware & Malware which will affect the computer and is generally downloaded from “ Shady “ Websites or Developers who Inject this software into the download.

Should “ Certain & Specific Software “ referenced from above be installed - it will negatively impact macOS. It is suggested, download directly from the Developer , the application Malwarebytes for Mac. 

It is free or paid for added features. 

Run the Application and it should remove the malware / adware. Once done, restart computer and test.

Yes

Malwarebytes has detected Malware / Adware