Version Note: Tested on Android 10,9 and iOS 13,12 with WhatsApp versions 2.20.27 /2.20.21, respectively.

Not even WhatsApp can listen in.

WhatsApp claims that every single chat has a unique lock and key to keep things safe.

Someone logging into WhatsApp on their phone.

@dzaqiakbar via Twenty20

However, they do provide one caveat.

How this is handled depends on the companys own privacy policy.

How WhatsApp End-to-End Encryption Works

WhatsApp uses Signal Protocol developed by Open Whisper Systems.

WhatsApp end-to-end encryption on Android.

How does it work?

When someone opens WhatsApp, a public and private key are generated.

All of this takes place behind the scenes on your phone.

The public key encrypts the message before it reaches its intended target.

On the other end, when the person receives the message, their private key unlocks it.

No third-party can intercept these messages because the keys are stored within the phone itself.

Even if a hacker were to breach the connection, they would not have the keys to unlock it.

There are no special controls you oughta worry about, and you dont need to take any action.

Tap the name of the person you are connected with to open theContact Infoscreen.

TapEncryptionto view theQR codeand 60-digit number.

Or you might scan the QR code.

If secure, you will see a green checkmark.

Now you could be assured that no one is listening in on your calls or messages.