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VoIP hacks gut Caller I.D.
Kevin Poulsen, SecurityFocus 2004-07-06

Implementation quirks in Voice over IP are making it easy for hackers to spoof Caller I.D., and to unmask blocked numbers.

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VoIP hacks gut Caller I.D. 2004-07-07
Anonymous
This "hack" is about on par with forging an email. VoIP standards (e.g. RFC 3261, or SIP) provide for end-to-end and hop-by-hop authentication methods which eliminate this problem if those methods are enabled. I think it's safe to say we'll see this kind of security turned on in typical deployment...

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