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Question

A CRYPT12 file is an encrypted database created by WhatsApp Messenger, an Android messenger application. ... The "crypt12" extension is often appended to a .DB file to create a .DB.CRYPT12 file, which is used by WhatsApp to secure a user's message database on his or her Android device.

Answer 1

what????

Answer 2

whatsapp is owned by facebook and that that used to see link between fb no. and whatsapp no.