The most secure messaging app

All around the world, users turn to Viber to have open and authentic conversations with their friends, family and colleagues. With Viber you can rest assured, knowing that your personal chats are always protected and private and that all your conversations are your own. Our mission is to protect that privacy so you never have to think twice about what you can or can’t share when you’re using Viber.

We don’t read or listen to any of your chats and calls

Unlike other messaging apps, Viber can’t read your personal chats (including one-on-one chats and group chats) or listen in on your audio or video calls. We use end-to-end encryption by default, so no need to go out of your way to turn it on. Your private and group communications are completely safe so that only you and the people you’re talking to can read or hear them.

We can’t and don’t sell what you share

When your chats are protected by end-to-end encryption, no one can access them. Perhaps most importantly, Viber doesn’t have access to them—which means nothing you share can be used by Viber or 3rd parties to target you with ads later. Other messaging apps don’t offer end-to-end encryption by default—hence they can access, read, and sell your private conversations to others for advertising purposes.

More than encryption

Not only are your communications protected by end-to-end encryption by default, but nothing you share is ever stored on Viber’s servers once delivered. Messages you send make their way from your device to the recipient as an encrypted code. If the recipient’s phone is off or they don’t have an internet connection—your message will wait patiently on Viber’s servers for a limited time only—still safe and encrypted—until their device is set to receive and decrypt it.

100% privacy you can trust

6 ways to ensure your message, chats, and calls are completely private and also empower you with more privacy when you want it.

End-to-end encryption by default

Messages you send make their way from your device to the recipient’s in the form of an encrypted code that only their device can translate to plain text using an encryption key.

Encryption keys exist only on user devices and nowhere else. So no one—not even Viber—can read your messages.

Disappearing Messages

Set a self-destruct timer for every message in your chat so that after your message is read, it is automatically deleted from the Viber chat— all sides of the conversation.

While its ON, screenshot actions will be notified in the chat. Privacy is privacy 😉

Edit & Delete Messages for All

Sending a message with a typo can be annoying, but don’t stress—just long tap the message and quickly fix it.

If you still want to, delete the sent message on all sides of the conversation, even if it was already seen. You control what you share.

Hidden-Number Chats

When you meet new people in a community or find them by name search on Viber— start a safer chat directly, without the need to exchange or expose yours or their phone numbers.

Hide Chats

Planning a surprise party and don’t want anyone to accidentally see your conversation? Hide chats from your chat list and access them whenever you need to with a PIN.

Under the radar

Control when others can see your online status and the delivery status of the messages they send you.

Learn more about Viber’s security measures on our support site.
Viber’s security protocol was based on the “double ratchet” protocol found in Open Whisper Systems Signal application, with our own proprietary implementation and additions. Our entire security overview is available here.