Status 11 is for "sensitive input" like passwords. The spec mentions:

the user's input should not be echoed to the screen to prevent it being read by "shoulder surfers"

cview has a password field that should do the job, replacing the regular input field in the input modal. Either a new modal could be made for this, or preferably, when calling the modal, there would be a new boolean field that specifies whether it is "sensitive" or not.