Obviously, everyone needs privacy. We don't need anyone to go through our accounts. Nobody can open your phone because it's locked. Desktop is different. So it is important to lock your account.
We can lock Viber as well as we can lock the screen too. The screen lock will stop other users to see your messages. The question is how can we lock our Viber account on the desktop?
It is really easy.
There is an option at the side called More screen. Click on more screen select lock Viber. It will be locked until you login again.
At the top right of your screen there is an option called settings. Click it and select lock Viber. You can lock Viber from the Keyboard as well. Click [ctrl+L]. From these ways you can lock Viber.