If the code doesn’t check out then it means that it’s changed or that you have the wrong one for that particular contact. Always get a new security code after it’s been changed. If it’s saved to your camera roll, you should not use it to verify the encrypted chat. In this case, the old security code will no longer work. If the security code for a contact changes, you get an alert within the chat thread. The only other scenario is when you change your phone or phone number. Your security code changes when you uninstall and reinstall Whatsapp on your phone. We should mention that security codes do change. If the green tick appears, you both have an encrypted conversation. To learn how to use QR code, you need to use code scanner software. You need an application with software designed to decode the information and extract it for your use. You cannot check by merely placing the camera over the QR code. If you’re both physically in the same area, tap the Scan Code button at the bottom and then point it at the code on your friend’s screen. Then, you discreetly scan the code from the victim’s mobile, and voila, you can spy on their WhatsApp. Whatsapp won’t let you scan the code from your camera roll so the code will have to be compared manually by looking at their code and the code they sent you. Tap the share button, and send it to your friend. This will show you a QR code and a numeric code. To send the code, open the chat thread and tap your friend’s name at the top. If you’re going with a photo of the code, you friend is going to need to send it to you. In order to verify a whatsapp security code, you need either a photo of the security code that has been assigned to your friend has or you’ll need your friend to be physically present with their phone. Here’s how you can verify a Whatsapp security code. To do that, users get a security code which isn’t the same as the encryption key but is is used to make sure the chat is indeed encrypted. You cannot see what key is assigned to you however, users too need a way to check if their chat is encrypted. Chats between users are encrypted using an encryption key that’s kept hidden.

How to scan with whatsapp