Many Mac users reported receiving a message on on their login screen that said "your screen is being observed”. What does this message mean? There seems to be some software that is using and controlling your Mac screen. If you need to know if your current mac has been compromised by malware, how do you solve this problem? In this article we will explore and solve them.
1. Check Screen Recording app
First there seems to be tied to applications having screen recording permission, go to System Preferences -> Security & Privacy -> Screen Recording, uncheck Google Chrome and other application, and make sure no apps are selected.
2. Check Which app can control your Mac
Go to System Preferences > Security & Privacy -> Privacy tab -> Accessibility, check which app can control your computer, please unselect or remove them.
3. Check Screen Sharing, Remote login and Remote Management
Go to System Preferences > Sharing -> Screen Sharing, Remote login and Remote Management. Disconnect and turn off items under Screen Sharing, Remote login and Remote Management option.
4. Check Mac startup items and service
Next we need to check Mac startup items and service, go to System Preferences > Users & Groups -> Login Items to check some auto-login applications. And you can access ~/Library/LaunchAgents, ~/Library/LaunchDaemons/ to check some startup daemons have been added by third party softwares. If you don't know much about it, we recommend third-party disk utility - PowerSuite , which can help you to list and manage all Mac startup items and service, you can choose to turn them off or on.
5. Uninstall recently installed application
If you've recently installed some suspicious programs, you can uninstall them. Removing the application itself to Trash does not completely delete all application files. You can use PowerSuite - App Uninstaller feature to completely uninstall application.
macOS has powerful gatekeeper and noatrize feature to detect and refuse the malicious software, installing only apps from the AppStore and identified developers is safe.
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