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They're called "Hackers", "Phone Phreaks", "Dump Bin Divers" and "Shoulder Surfers". They sell information between themselves and they cost businesses millions of dollars each year. They use weaknesses in corporate Call Server/PABX/Key System programming for personal gain at the (considerable) expense of the victims, and system may be their next target. So what can one do to protect system from toll fraud? One of the best ways to help protect company Call Server/PABX/ Key System from toll fraud is to learn how hackers gain access to system so that one can block their entry. These perpetrators can use several methods of hacking a PBX to reprogram it.
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