 - Vishing (voice or VoIP phishing) is an electronic fraud tactic in which individuals are tricked into revealing critical financial or personal information to unauthorized entities. Vishing works like phishing but does not always occur over the Internet and is carried out using voice technology. A vishing attack can be conducted by voice email, VoIP (voice over IP), or landline or cellular telephone.
The potential victim receives a message, often generated by speech synthesis, indicating that suspicious activity has taken place in a credit card account, bank account, mortgage account or other financial service in their name. The victim is told to call a specific telephone number and provide information to "verify identity" or to "ensure that fraud does not occur." If the attack is carried out by telephone, caller ID spoofing can cause the victim's set to indicate a legitimate source, such as a bank or a government agency.
Vishing is difficult for authorities to trace, particularly when conducted using VoIP. Furthermore, like many legitimate customer services, vishing scams are often outsourced to other countries, which may render sovereign law enforcement powerless.
Consumers can protect themselves by suspecting any unsolicited message that suggests they are targets of illegal activity, no matter what the medium or apparent source. Rather than calling a number given in any unsolicited message, a consumer should directly call the institution named, using a number that is known to be valid, to verify all recent activity and to ensure that the account information has not been tampered with.
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Learn more about VoIP QoS and VoIP Security |
| The benefits of linking VoIP islands: In this podcast, industry expert Jon Arnold explains how VoIP islands and voice-centric IP PBXs are limited compared with converged communications. |
| Mobile IP networks: An overview: Learn about mobile IP networks, from protocols to security, in this chapter excerpt from "Wireless Networking Complete." |
| Tutorial: VoIP ROI: This tutorial walks you through VoIP ROI basics, VoIP deployment and implementation costs, and how to build a business case for VoIP. |
| VoIP implementation study guide: Test your knowledge of VoIP implementation key concepts in this VoIP implementation study guide. |
| SIP tutorial: This comprehensive tutorial details the ins and outs of the Session Initiation Protocol (SIP), the VoIP and UC industries' signalling protocol of choice. |
| LAST UPDATED: |
24 Feb 2008
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