I have disabled teamviewerd.service for security reasons with "sudo systemctl disable teamviwerd.service". I only start the service when I actually need to use Teamviewer.
I notice that every Teamviewer update overwrites the systemd configuration and re-enables the background service without my consent. I am not happy with the behaviour of Teamviewer updates und would highly recommend to modify the installation script in a way that the user is asked if the startup configuration should be changed or not. This is common practice in the Linux world.
My system: Ubuntu 18.04 64bit.
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