First of all kudos to you guys to develop such an awesome piece of software. I have just migrated my stuff to Enpass on my Mac l and loving it so far. This is definitely one of the best offline password managers I have seen by far.
While playing around with the software, I have noticed it automatically creates a backup file with an extension .enpassbackup.
Like most of the other software, this file is what a hacker would need to brute force an attack on to decrypt all the secrets.
How is this file generated, how secure is this file? Can we have some extra security measures to protect the file other than the master password?