Technology/HowTo/TeamsPermissionsMac
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Allow Teams Access to Camera, Microphone and Screen Sharing in macOS
For macOS Catalina 10.15 and Big Sur 11, Apple features additional security for cameras, microphones and screen sharing. The following steps apply for macOS Catalina (version 10.15) or higher.
To check if you have one of these versions on your Mac, click the Apple menu in the top-left corner, then select About This Mac. The window identifies which macOS version you have.