For Whom the Fraud Tolls

PBX hacking phone froud

Telephone fraud has been going on for a long time. It became prevalent in the 1960s, when DTMF (Dual-Tone Multiple Frequency) dialing was being introduced to replace pulse dialing from then-current rotary phones. Crafty individuals educated themselves and fabricated handheld red, black, and blue boxes that could generate the necessary tones to alter the target … Read more