If you are starting TeamViewer on your Mac running macOS 10.15 (Catalina) for the first time, you will be prompted with the following dialog:
By default, all permissions are set to Denied. Please give permission to the system capabilities manually to use TeamViewer as desired. If you or others need to access the Mac remotely, Screen Recording and Accessibility are required at a minimum.
To allow the access, click the buttons shown in the dialog. Eg. click Open Full Disk Access Preferences... which will bring you to the Full Disk Access section of the Privacy pane, inside the Security & Privacy preferences:
For the Accessibility access you will need to click the padlock icon in the lower-left corner to make changes. You will be prompted to enter the credentials of an administrator account to continue.
Put a check next to TeamViewer to grant it access:
Repeat the same for Screen Recording and Accessibility if desired. Those are required to control your Mac.
Click again on the padlock in the lower-left corner to prevent further changes.
Now you can close the Security & Privacy window. The next time you want to receive an incoming connection with TeamViewer, the person connecting to your Mac will be able to see and control your screen.
The permission status can be reviewed under Help -> Check system access at any time.
macOS or BigSur - How to grant access to TeamViewer on your Mac
If you are starting TeamViewer on your Mac running macOS 10.15 (Catalina) or macOS (BigSur) for the first time, you will be prompted with the following dialog: By default, all permissions are set to Denied. Please give permission to the system ...
iTec Docking Stations and MacOS
Users installing MacOS Catalina are running into issues with iTec docks after the upgrade. A new Beta driver has been released and needs to be installed with the older one removed, along with permissions adjusted in Security & Privacy. Follow this ...
How to downgrade from macOS Monterey to BigSur
How to Downgrade from macOS Monterey to Big Sur. If you have macOS Monterey on your Mac and have decided that you do not like it or that your Mac is having trouble operating it, the good news is that you can downgrade to Big Sur. In this article, we ...
macOS Reversion: How to Downgrade from BigSur
macOS BigSur has a great deal going for it, with lots of new features, new security and privacy safeguards, as well as new apps such as News and Home. But even with all of these new capabilities, a few of you may find yourselves wishing you could go ...
How to Install the macOS Monterey Public Beta.
This guide guides you through the simple steps of installing macOS Monterey Public Beta. Apple has made the public beta available to its Public Beta Testing Group, which will let public beta testers try out the new software before it is released in ...