I recently received a pop up from chrome that said I had four viruses attacking my phone. I don't remember if there was a phone number listed, but there was an app suggested. The pop up looked legitimate because it was in the Google page, not a box separate from the page. It said my phone was 28% damaged and I should not leave the tab or my phone could be furthered damaged. Below was a button to install the app for antivirus. I pressed it and downloaded the app and it had great reviews on the play store. I don't know if it's fake or real. Please help me.