Monthly Archives: October 2019

Who’s Calling – How does PBX Fraud Occur?

By: Joe Davulis, ConvergeAssure® Engineer           How does PBX fraud occur? Hackers typically gain unauthorized access into your PBX through a maintenance port, voicemail or the Direct Inward System Access (DISA) port. It’s not uncommon for hackers to even take advantage of toll-free lines intended for employee use, sometimes with stolen