You may be seeing a certain message on your WhatsApp just when you engage a chat. There is a high chance that most of us have not responded to the prompt within the message that says “Tap for more info” because of the fear of spam or viruses. Users with the latest version of the WhatsApp app were notified about the end to end encryption feature when sending messages on Tuesday. The setting is enabled by default.
End-to-end encryption is available when you and the people you message are on the latest versions of WhatsApp. There is no way to turn off end-to-end encryption.
Encryption was thrown under the spotlight after the FBI asked Apple to help it access data on an iPhone used by California gunman Syed Farook.
WhatsApp said: “The idea is simple: when you send a message, the only person who can read it is the person or group chat that you send that message to. No one can see inside that message. Not cybercriminals. Not hackers. Not oppressive regimes. Not even us.”
For added protection, every message you send has a unique lock and key. All of this happens automatically: no need to turn on settings or set up special secret chats to secure your messages.
What is the “Verify security code” screen in my contact info/group info?
Each of your chats has its own security code used to verify that your calls and the messages you send to that chat are end-to-end encrypted.
The verification process is optional and is used only to confirm that the messages you send are end-to-end encrypted.
This code can be found in the contact info/group info screen, both as a QR code and a 60-digit number. These codes are unique to each 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 key shared between you – and don’t worry, it’s not the actual key itself, that’s always kept secret.
For more information you can read https://www.whatsapp.com/faq/en/general/28030015