Some congregations make it very difficult to get the appropriate password officially. One long-time elder was told that his elderly parents had to go to the KH during the meeting to get the password, which was updated every month. He was told that even he could not give the password to his parents.
It may have changed since then but if the BOE controls access to the password, it will vary from congregation to congregation.
I got the password from my jw mother in another congregation at a time when I had not attended a meeting for 3 years. Just out of curiosity I listened to 3 minutes of a public talk and 3 minutes of a discussion of one paragraph. I went out and vomited after that.