Your 12-step work does not usually have legal privilege

Your 4th step can be subpoenaed. Someone who hears your fifth step can be subpoenaed to testify about it and can’t claim privilege. A therapist or member of the clergy will usually have privilege (meaning, what you tell them can’t be subpoenaed in most cases). Rabbis, by the way, do not generally consider things you tell them to be confidential, even if they tell you that what you confide will be held in the strictest confidence, because rabbis generally see the well-being of the community their highest priority. Christian clergy, particularly priests, usually hold confidentiality.