![]() Like landline providers, companies that manage digital phone calls, also known as Voice over Internet Protocol (VoIP) services, are required to transmit audio in real time, facilitating personal, business and even emergency calls. ![]() What those extortionists have discovered is that the number of phone calls that take place at least partially over the internet has quietly and dramatically increased in recent years - and there's a lot at stake when major providers go down. (Odd Andersen/AFP via Getty Images)Ĭriminal groups have been sending threatening messages in the past couple of months to companies that manage broadband phone services all over the world, promising they'll flood the digital phone lines with traffic and take them offline unless the targets pay a ransom. Security providers that focus on digital communications started noticing an uptick in attacks on companies that manage digital phone call services this fall.
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