Hacked phone systems lead to credit card fraud
Phone system and voicemail hacking have been going on ever since they were invented it seems. Recent attacks, though, show a new level of complexity and severity.
THEN
In the 80’s hackers would get hold of DISA numbers (Direct Inward System Access- numbers that were often used to allow remote workers make long distance calls on a company’s phone account). These numbers allowed the hackers to route their dial-up modems through toll free numbers that passed the call through the company PBX phone system. The hacker could then access long distance electronic bulletin board numbers and not worry about the cost. (Long distance calls were a bit more expensive back then, and no Internet as we know it today.)
In the 90’s, voicemail systems became much more affordable and the varieties of hacks grew. A hacker from the Philippines calling himself “the sniper” became well known in certain telecom circles hacking numerous US based PBXs, forcing the systems […]