At what point have you heard your isp typing when you are giving the so called security details? I asked BT once that I am not hearing any typing - remember they all use cheap microphones which means they pick up all noise in the room the hapless call centre staff is working in - I asked a lady at bt. She replied she was using a noisless keyboard. In other words she blagged.
It might just surprise you that many call centers use very high quality mic's that do not pick up noise outside a certain area. In order that customer cannot here anything other than what they should be hearing, reps voice.
YES I work in a call center and if my mike drops too low. People start complaining that they can't hear me...
I also know that when I ring the same call center I can't here any typing, despite knowing exactly what that person is doing.
Also note that their display will also show the number that is calling in. So this helps balance security....
TBH. Having read all your posts, I'm still at a loss to understand just what your problem is....
I already know that the display shows the number that is calling. So then why the trick question - what is your telephone number? Answer me that call centre staff.
And call centre staff, you did not answer why when you have been given a list, after asking what can you do to help, do you then ignore the list, and ask again what it is I want?
About 'high quality microphones'. If one person is using high quality microphones, surely at least most of them should be using high quality microphones. I say this as I would imagine that companies upgrade the equipment en-masse And guess what I almost invariably can hear what is going on about the call centre staff - so they are not using high quality microphones are they?
There is no security in asking question that other people would know the answers to. Such as address, name, telephone number, post code. I would accept name and password. But to ask all those other questions is just gilding the lilly, or asking questions for the sake of asking question, to continue the charade that its done for security.
I had a conversation with the organisation that is meant to be regulating the DPA. They said that the questions should be unique - that is only I and the company would know the answer. How does asking the name, address, telephone number, postcode etc qualify as unique information that only the customer and company would know? And BTW call centre staff - who is it that regulates the DPA? How many questions should be asked to satisfy the DPA? And what questions should be asked to satisfy the DPA? (I have given you a clue about this).