Whatsapp messenger recent rolled out a feature called Delete for Everyone, a useful feature that lets you
It has been reported that WhatsApp has bug that allow people to read DELETED messages. There is, however, an apparent workaround that restores deleted messages in very limited circumstances.
It relies on the WhatsApp backup feature that runs on most people’s phones at 2am each night. Other backup options are available, but it’s the overnight one that makes the most sense to exploit this bug.
If a WhatsApp user deletes a message and you want to read it then you simply uninstall the app and then install it again. When you do this the chat archive will be restored from the backup and deleted messages will reappear.
There is an issue with how the messenger handles deleted messages that makes this possible. When you’re online and someone deletes a message, WhatsApp says “this message was deleted“.
The message vanishes from the chat it’s still stored on the device. When the backup is restored the app no longer flags it as deleted and it’s restored.
There’s are risks with restoring backups though and they can cause problems of their own. You will, for example, lose messages that were sent between the backup and when you reset your phone.