[guardian-dev] automatic calling?

[Matej Kovacic]

Hi,

> Yeah, the telephone system really was not built with general access in mind,
> but instead thinking that only a limited number of employees would have
> access.  Things like the originating phone number are entirely unauthenticated
> (like email).  So, for example, if you have telecom access, you can make your
> calls look like they are coming from any number.
I know this. Here is my short video about caller ID spoofing:
http://videolectures.net/single_kovacic_varnost_voip/

Anyway, caller ID spoofing was not the problem here, but expenses. And
in one case, call was on a list of outgoing calls (on victims'
telephone), while user strongly claims he did not made this call.

Regards,

Matej
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