Why VoIP is the next target for spammers

VoIP could be the next hot target for spammers, a report in The Guardian suggests. Hackers have targeted Columbia University - possibly a direct attack on Henning Schulzrinne, co-author of the session initiation protocol (SIP) that's used by all the major VoIP, who is head of computer sciences at the university. Schulzrinne said the phone is "a very tempting new medium for spammers" as people always answer their phone and retrieve voicemails, whereas junk is easily filtered from emails.