| | VoIP hacks gut Caller I.D. |
 | | This arrangement relies on telephone equipment at both ends of the call being trusted: the phone switch providing you with dial tone promises not to lie about your number to other switches, and the switch on the receiving end promises not to reveal your number if you've asked that it be blocked. |
 | | As described by Lucky, who's scheduled to give a talk on the subject at the DefCon hacker convention later this month, much Caller I.D. chicanery can be accomplished by taking advantage of implementation quirks in Voice over IP networks that try, but fail, to implement Caller I.D. properly. |
 | | Privacy advocates, who had reservations about Caller I.D. when it was introduced in the 90s, aren't happy that it's becoming easier to subvert. |
| www.securityfocus.com /news/9061 (784 words) |