After a long period of testing, Facebook officially announced today that it will provide end-to-end (E2E) encryption for voice and video calls on the Messenger service. At present, the information sent by Messenger has been encrypted using E2E, and this update will help protect the security of users in terms of audio and video.
It should be noted that Facebook does not encrypt your ordinary messages. You need to click on the I in the chat window and go to Secret Call. Any messages sent there are encrypted. Starting today, these secret conversation windows will have call options and video options, and you must select these items from the secret conversation to benefit from end-to-end encryption.
Facebook initiated a secret conversation five years ago, but due to COVID-19, its audio and video calls have increased. For this reason, it decided that it is worthwhile to provide these services from a secret conversation window in order to provide users with greater privacy and help people gain more trust in the Facebook brand.
The disappearing message is another option unique to secret conversations. With today’s update, users will have more choices to decide how long they want messages to be kept; you can now choose to make messages disappear from anywhere between 5 seconds and 24 hours.