- Customize your Viber privacy settings
- Prevent others from being notifying that you saw the messages;
The “seen” status of messages will be displayed on the screen of the contact you are communicating with once you open their message on your phone.
Select Settings→ Privacy → turn the feature off.
Change your login status
If you are trying to avoid talking to some of your Viber contacts, but you wish to check some of your messages at the same time and talk to people who are important to you;
Select Settings→ Privacy → turn off the “Share Online Status”.
Source: Handbook on Information Security, Sri Lanka CERT – CC