VoIP spam
From Wikipedia, the free encyclopedia
VoIP spam is an as-yet non-existent problem which has nonetheless received a great deal of attention from marketers and the trade press. Some pundits have taken to referring to it as SPIT (for "Spam over Internet Telephony"); however, this neologism is not used by VoIP technicians.[citation needed]
Voice over IP systems, like e-mail and other Internet applications, are susceptible to abuse by malicious parties who initiate unsolicited and unwanted communications. Telemarketers, prank callers, and other telephone system abusers are likely to target VoIP systems increasingly, particularly if VoIP tends to supplant conventional telephony.
The underlying technology driving this threat is SIP (Session Initiation Protocol, IETF – Internet Engineering Task Force, RFC 3261). This technology has received significant support from most major telecommunication vendors, and is showing signs of becoming the industry standard for voice, video and other interactive forms of communication such as instant messaging and gaming.
Similar rules to today’s email systems that block unsolicited email will also prevent unsolicited voice and video communication. This can also be compared to the way today’s chat applications prevent unwanted users from viewing your availability or state of presence by using “privacy” options.
SIP as the technology has been designed to support presence natively. This potentially means that incoming callers will know your availability before even attempting to call or make contact with you. So just like with e-mail today the benefits of communicating with trusted parties electronically far exceeds the pitfalls of e-mail spam, particularly when using preventative technologies to minimise the impact of the issue.
[edit] Resources
Hansen, Markus; Hansen, Marit; Moeller, Jan; Rohwer, Thomas; Tolkmit, Carsten, Waack, Henning: "Developing a Legally Compliant Reachability Management System as a Countermeasure against SPIT", Third Annual VoIP Security Workshop, Berlin, June 2006.
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E-mail spam | DNSBL • Spamhaus • Anti-spam techniques • Spambot • Address munging • SORBS E-mail authentication • Directory Harvest Attack • SpamCop • Dictionary spamming |
Spamdexing | Google bomb • Keyword stuffing • Cloaking • Link farm • Web ring Referer spam • Blog spam • Spam blogs |
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