From 2-spyware.com
Install.app wants access to control is a prompt on Mac systems that appears after users infect their machines with a potentially unwanted application. While the pop-up is a legitimate warning from your device (an extra security measure implemented in Mojave version of macOS), allowing it to access Safari (Safari.app) or another app on your system can cause serious privacy issues or even lead to identity theft, resulting in monetary losses and corrupted credit score.