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vishing

   Also found in: Wikipedia 0.07 sec.

vishing

(Voice phISHING) Also called "VoIP phishing," it is the voice counterpart to phishing. Instead of being directed by e-mail to a Web site, an e-mail message asks the user to make a telephone call. The call triggers a voice response system that asks for the user's credit card number. The initial bait can also be a telephone call with a recording that instructs the user to phone an 800 number.

In either case, because people are used to entering credit card numbers over the phone, this technique can be effective. Voice over IP (VoIP) is used for vishing because caller IDs can be spoofed, and the entire operation can be brought up and taken down in a short time, compared to a real telephone line. See phishing and VoIP.



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Users of Voice over Internet Protocol (VoIP) systems must be mindful not only of denial-of-service vulnerabilities in their VoIP PBX implementations, such as the vulnerability discovered in Asterisk, but underlying VoIP protocol weaknesses that may leave organizations open to vishing, a new security threat which uses VoIP to steal user information, and spam over the VoIP network," said Chris Rouland, chief technology officer of Internet Security Systems.
Like most other social engineering exploits, vishing relies upon the 'hacking' of a common procedure that fits within the victim's comfort zone.
 
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