On first glance this sounds like a good thing

[Nick]

I can't confirm that 

[Snoopy]

Nick ~ That one really gets my p*ss boiling. Every b@st@rd company that calls me starts with that nonsense.
Having run through all the options like "No .... you tell me what you've got on the screen and I'll tell you if it's right" through to "Well you just fvcking got through to me by dialling it didn't you" I decided to change my line of attack. My reply is now always the same. "No ~ you called me, I have no wish to speak to you, I have no idea who you are, so write me a letter instead" and I hang up.

[Grumpmeister]

I got a call from mine earlier.

"Can you confirm your password?"

"Yes, tell it to me and I will confirm it."

"We can't do that."

"So don't ask me to confirm it then!" 

Would you rather they accidentally called someone else and used gave out your password for that person to cofirm Nick?

As irritating as it can be, its an effective method of ensuring they are talking to the correct person.

[Nick]

They could offer options and I could confirm the correct one!

[Pastis]

They could offer options and I could confirm the correct one!

I got them to do that once!  They asked the question and I replied, "Go on, give us a clue. I've so many effin' passwords I can't recall which one I used."

[Snoopy]

I got a call from mine earlier.

"Can you confirm your password?"

"Yes, tell it to me and I will confirm it."

"We can't do that."

"So don't ask me to confirm it then!" 

Would you rather they accidentally called someone else and used gave out your password for that person to cofirm Nick?

As irritating as it can be, its an effective method of ensuring they are talking to the correct person.

Point taken BUT the callers should be trained to speak in English.
Tell me something and I can confirm or deny it. Ask me something and I can tell you. Thus they should be saying "For your security may I ask for your password in order that I may confirm it to be the one we hold for you?"

How the fvck can I confirm something when I haven't been told what they believe it to be?

One this very afternoon said "Can you confirm your telephone number?" ~ I had instigated the call for the purposes of paying a bill and therefore did not follow my usual practice of hanging up BUT I did point out that if he could tell me what number they held for me then I would be able to confirm if it was correct. He, as I well knew, did not have my number as I never give it out to anyone and was in fact fishing so that they could pester me with sales calls in the future. He gave up when I let him know I was wise to his tricks.