Only a user with administrator rights on the remote computer can configure these Privacy & Security settings. After configuring the Privacy settings, the computer then becomes controllable and accessible using the selected remote control solutions. Mac OS 10.15 (Catalina) expanded these security settings by introducing a Screen Recording permission. When the new Accessibility and Full Disk Access security requirements are enabled you can take control of the remote device and interact with its files, otherwise you can only observe when connected. With the release of Mac OS 10.14 (Mojave), Apple introduced new security requirements for all remote support solutions, including Take Control. How to set up a Mac device for Take Control