I would like to know how to re-encrypt everything in my 1Password 4 vault.
The reason for this is that it appears that when the master password is changed, the encryption key for all of the secure data is not changed.
Imagine the following situation:
You have a friend who you trust, and you share your 1Password file with them, and you both know the master password.
Then, you part ways.
Then, you change your master password on your copy of the file.
Then, you start adding all sorts of new passwords to your file.
You can clearly see, beacuse the key has not changed, that even if the master password is new, if this friend got access to your file, he would be able to get all the new, fresh passwords that he isn't supposed to have.
Because of situations like this, I would like to know how to re-encrypt everything in my 1Password 4 vault with a completely new key. This should be a standard feature.