Re: listening to people/offices when on-hold on the phone

On 6/22/07, Robin Wood <dninja@gmail.com> wrote:
> Imagine the situation, you get a message to call someone, your call
> gets answered by an automated system which says there may be a few
> minutes wait and gives you the bad hold music. You hit the hands free
> button on the phone and get on with work while you wait for it to be
> answered.
>
> Unless you mute the call, the person/system on the other end of the
> call could be listening in while pretending to be on hold and
> potentially hear all that is going on around you.
>
> It is a random attack vector but it could allow an attacker to pick up
> all sorts of information. I thought about it while sitting on hold for
> over 30 mins trying to get through to my mobile phone support line
> last night. If they had been listening they would know what I had for
> dinner.
There was an interesting presentation in last year's Black Hat Las
Vegas by Jay Schulman about a phone phishing set-up.  Thought you
might be interested.
https://www.blackhat.com/presentations/bh-usa-06/BH-US-06-Schulman.pdf

Thanks,
Rajat Swarup.
http://rajatswarup.blogspot.com/

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