How to grant access to TeamViewer on your Mac
If you're starting TeamViewer 14 or higher on your Mac running macOS 10.14 (Mojave) or higher for the first time, you will be prompted with the following dialog:
You can also open this dialog by clicking on Help --> Check system access.
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 to allow Accessibility, click on Request Access... - then confirm by clicking on Open System Preferences
which will bring you to the Accessibility section of the Privacy panel, 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 might be prompted to enter the credentials of an administrator account to continue.
Put a check next to TeamViewer to grant it access:
Note: If you are seeing the entry TeamViewer_Desktop in your list, make sure to check this box as well.
Repeat the same for Full Disk Access and Screen Recording. Those are required to control your Mac.
Click again on the padlock in the lower-left corner to prevent further changes.
Once you have done it for every category, 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 device.
The permission status can be reviewed under Help -> Check system access at any time.
