Viber is a popular app with over 100 million monthly active users globally. Available on both iOS and Android, it supports messaging, voice/video calls, and group chats.
Go to Settings → Privacy and uncheck "Share ‘Online’ Status".
In Privacy settings, untick "Show your photo".
Under Privacy, uncheck "Send ‘seen’ status".
Use a biometric/password-based App Lock to secure the app from unauthorized access.
If an account is compromised, deleting personal data ensures sensitive information is no longer accessible.
Use the support link to report spam, abuse, or privacy violations.
If your account is hacked, it's best to deactivate it to prevent further misuse.