Yes, secret conversations (now part of default end-to-end encrypted chats on Messenger) are saved, but only for you and the recipient, secured by encryption, and accessible via a PIN or cloud backup (iCloud/Google Drive) when you log in on a new device; you can also download your data, and older "Secret Conversation" threads still exist as E2EE chats with a lock icon.
Open Messenger on your Android or iOS. Find chats with a lock icon next to them — those are your secret (encrypted) conversations.
Users often struggle to identify when secret conversations are active or receive no notifications for them. Messenger's secret conversations use end-to-end encryption and appear only on participants' devices. There's no visible indicator for others when a secret chat is active.
Did you know there was a "secret" folder in your Facebook messenger app? If you are not friends or connected with people many times your messages get filtered into this folder and unless they know to go look at them they are hidden away! >>> At the bottom of the screen hit the "people" tab! >>>
To view your locked chats:
If you make your message available for 30 seconds, for example, a timer appears on the right hand side and then displays a countdown showing how many seconds the message is available for, before it disappears. You are given options to display your message from as little as five seconds, to a maximum of 24 hours.
Messages in Secret Chats can't be forwarded to other users and have a self-destruct timer. Secret Chats are identified by a lock icon next to them.
Steps
When someone deletes the secret-conversation then it is removed by the both of the parties. Either the chat history also can't be recovered. So, don't worry in this case you are safe. Because this is the reason it named as secret conversation.
What Are the Warning Signs Your Partner May Be Using Secret Messaging Apps?
The “secret conversation” feature gave users the option to chat and send media (like pictures, videos, and voice recordings) in a safer and more private way. When enabled, it meant only chat participants could read the messages or media, because chat participants were the only ones with the keys.
Ciphers are broken into two main categories; substitution ciphers and transposition ciphers. Substitution ciphers replace letters in the plaintext with other letters or symbols, keeping the order in which the symbols fall the same. Transposition ciphers keep all of the original letters intact, but mix up their order.
2View Hidden Messages on Facebook from Android Devices
Step 1: Open the Facebook Messenger app on your Android device. Step 2: Tap on "Chats" in the top left corner of the Messenger app window. Click on it to see the menu, then follow the next step. Step 3: Select the option "Message Requests".
To tell if someone is having a secret conversation on Facebook Messenger, you can pay attention to the next signs: Lock icon: All the text messages that are end-to-end encrypted have a lock icon next to them.
Hiding a chat refers to the feature that temporarily removes a chat from the chat list. In contrast, deleting a chat not only temporarily removes it from the chat list but also deletes its previous chat history. After hiding or deleting a chat, it will automatically reappear when a new message is received.
On Android device:
Open the app and click on the pencil icon in the upper right-hand corner to start a new message. 2. You'll see the lock icon in the upper-right hand corner. Slide it to the right and type in the name of the receiver to start a conversation.
The Secret Chats feature in Messagenius is designed to provide the highest level of privacy and security for your most sensitive communications. Unlike regular chats, Secret Chats are protected with end-to-end encryption, meaning that only the sender and recipient can decrypt and read the messages.
If you send a message to someone and they don't read it within 14 days, the message will automatically disappear from the conversation. To choose when your messages disappear from your conversation: From Chats, tap on the secret conversation.
If you delete messages on Instagram, Snapchat, or Messenger, police can even recover those messages. Those messages that you thought were gone forever and for more secure applications that use end-to-end encryption, police can use programs such as Celebrate to access deleted documents, videos, messages from your phone.