I’ve noticed that we don’t get an email if we change our email, master password, or Encryption Key Settings.
This seems to be a big deal that has gone under the radar. You would not know someone has gotten into your account and made changes because there is no email to alert you of any changes. Someone could sneak into your settings and change the email to something else without you knowing thus locking you out of the account.
If you ask me, any changes made in the settings should send an email.
At least the “My Account” panel of the settings page should send an email if any changes are made.