End-to-end encryption (E2EE) is a security feature that ensures that only the sender and receiver of a message can read it. When E2EE is enabled, messages are encrypted before they are sent and can only be decrypted by the recipient’s device. This makes it very difficult for third parties, such as hackers or law enforcement, to intercept and read messages.
E2EE is an important security feature that can help to protect your privacy. However, there may be times when you need to turn it off. For example, if you are troubleshooting a problem with Messenger, you may need to turn off E2EE in order to allow Facebook support to access your messages.