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Figure 1 The "key" file The crypt key extraction and recovery The main problem of decryption encrypted WhatsApp databases is that the key is always stored on the device, but encrypted databases can be also stored on it's SD card, for example To do it, go to the folder on your device's memory card where WhatsApp saves user chat backups /sdcard/WhatsApp/Databases If you go to that folder, you will find a file with the name msgstoredbcrypt12 there, and several more files with names like