Help Article | About security code change notifications

End-to-end encrypted chats between you and one other person have their own security code used to verify that the calls and the messages you send to that chat are end-to-end encrypted. This code can be found in the contact info screen, both as a QR code and a 60-digit number. These codes are unique to each individual chat and can be compared between people in each chat to verify that the messages you send to the chat are end-to-end encrypted. Security codes are just visible versions of the special keys shared between you - and don't worry, it's not the actual keys themselves, which are always kept secret.

At times, the security codes used in end-to-end encrypted chats between you and one other person might change. This is likely because you or your contact reinstalled WhatsApp, changed phones, or added or removed a paired device. You can always verify that a contact's security code is legitimate. Learn how in this article on end-to-end encryption.

Receive notifications when security codes change

You can enable security notifications to receive notifications when your security code changes for a contact’s phone in an end-to-end encrypted chat. You’ll need to enable the setting on each device where you want to get notifications.

Enable security code notifications

Android

Open WhatsApp > tap More options

> Settings.

Tap Account > Security.

Turn on Show security notifications on this phone.

iPhone

Go to WhatsApp Settings.

Tap Account > Security.

Turn on Show Security Notifications on This Phone.

Web and Desktop

Open WhatsApp > click Menu

above your chats list > Settings.

Click Security.

Turn on Show security notifications on this computer.

Disable security code notifications

Android

Open WhatsApp > tap More options

> Settings.

Tap Account > Security.

Turn off Show security notifications on this phone.

iPhone

Go to WhatsApp Settings.

Tap Account > Security.

Turn off Show Security Notifications on This Phone.

Web and Desktop

Open WhatsApp > click Menu

above your chats list > Settings.

Click Security.

Turn off Show security notifications on this computer.

WhatsApp Features

TEXTS

Simple, Reliable Messaging

Message your friends and family for free*. WhatsApp uses your phone's Internet connection to send messages so you can avoid SMS fees

* Data charges may apply. Contact your provider for details.

GROUP CHAT

Groups to keep in touch

Keep in touch with the groups of people that matter the most, like your family or coworkers. With group chats, you can share messages, photos, and videos with up to 256 people at once. You can also name your group, mute or customize notifications, and more.

WHATSAPP ON WEB AND DESKTOP

Keep the Conversation Going

With WhatsApp on the web and desktop, you can seamlessly sync all of your chats to your computer so that you can chat on whatever device is most convenient for you. Download the desktop app or visit web.whatsapp.com to get started

WHATSAPP VOICE AND VIDEO CALLS

Speak Freely

With voice calls, you can talk to your friends and family for free*, even if they're in another country. And with free* video calls, you can have face-to-face conversations for when voice or text just isn't enough. WhatsApp voice and video calls use your phone's Internet connection, instead of your cell plan's voice minutes, so you don't have to worry about expensive calling charges.

* Data charges may apply. Contact your provider for details.

END-TO-END ENCRYPTION

Security by Default

Some of your most personal moments are shared on WhatsApp, which is why we built end-to-end encryption into the latest versions of our app. When end-to-end encrypted, your messages and calls are secured so only you and the person you're communicating with can read or listen to them, and nobody in between, not even WhatsApp.

PHOTOS AND VIDEOS

Share Moments that Matter

Send photos and videos on WhatsApp instantly. You can even capture the moments that matter to you most with a built-in camera. With WhatsApp, photos and videos send quickly even if you're on a slow connection.

DOCUMENTS

Document Sharing Made Easy

Send PDFs, documents, spreadsheets, slideshows and more, without the hassle of email or file sharing apps. You can send documents up to 100 MB, so it's easy to get what you need over to who you want.

VOICE MESSAGES

Say What's On Your Mind

Sometimes, your voice says it all. With just one tap you can record a Voice Message, perfect for a quick hello or a longer story.

Comments

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