by Lisa Vaas on October 22, 2014

 

Remember pre-Voice-over-IP, back when long-distance calls were expensive, and you had to hunt down employees and beat them up to keep calls short?

There are still ways to rack up breathtakingly expensive phone bills, even with most corporate phone lines now running over the internet.

One example is when modern-day phreakers - phone hackers - break in to companies' phone networks and stick businesses with horrific bills for calls they never made.

 

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