

This periodical changing of CRYPT extensions created various problems for users, in the form of accessing older CRYPT chat history backups, when you are looking for something some of your friends wrote you, or eve restoring older CRYPT backups. These files could be originally found with the file extension CRYPT (and later CRYPT5, CRYPT7 etc), but eventually with each newer WhatsApp version, the extension was changed first to CRYPT12. The thing that bothers many of WhatsApp users is the ever changing format for storing chat history. It is available on all mobile platforms and handles over 55 billions messages each day. WhatsApp is a hugely successful instant messaging service with over 1 billion users.
