VoIP and phishing

James Cloos cloos at jhcloos.com
Thu Apr 27 18:56:58 EDT 2006


>>>>> "mis" == mis  <mis at seiden.com> writes:

mis> does anyone know if [real-]time ANI from
mis> toll free services is still unspoofable?

No, in general it is not unspoofable.

But you probably need the gateway into the PSTN to use SS7 and IMT
trunks; and that probably means a CLEC license in the US, or similar
elsewhere.  That presumably means more substantial civil and criminal
penalties for spoofing with criminal intent, not to mention the
potential loss of the operating license for doing so.

So although it is certainly doable, it'll be expensive and likely
beyond the means of small-time players.

In short, if you have direct SS7 access, there isn't much you cannot
do to screw over other providers and their customers.  Hense all of
the rules and regs for getting such access.

-JimC
-- 
James H. Cloos, Jr. <cloos at jhcloos.com>

---------------------------------------------------------------------
The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to majordomo at metzdowd.com



More information about the cryptography mailing list