The rise of telephony over the Internet, may tease the imagination of data-processing criminals in 2007. They are always searching diversified attacks, some specialists in computer security said. Whereas the viruses on mobile phones start to appear, with the development of 3G devices, IP telephony which circulates with other data on the same network, and which potentially exposes it to the same level than current IT risks.

According to tests carried out by a specialized company, 1.000 calls of thirty seconds duration can be sent in five seconds. With a good VoIP solution, it gives the ability to generate a greater volume of communications; The fact that the message is read and not writing may turn the filtering process more complicated. In the “vishing”, the misled user is directed towards a factitious auto-attendant, for example of bank, same as a false Internet website in the phishing, requiring then confidential data of the user.

These new swindling are yet called: “spit” (Spam over IP Telephony) and the “vishing” (”voice-phishing”). On the same basis as the spam, the spit is a telephone call unsolicited by the receiver, to whom it will be offered counterfeited products, deals, promotions events, or event the purchase of actions, very up-to-date with written spams.