A company called Pindrop Security has come up with a different way to fight the fraud. Instead of erecting more security walls and authentication mechanisms–which will slow fraudsters, but not stop them–Pindrop identifies whether a call is legitimate or fraudulent based on the audio signal from the call itself. It’s an innovative use of big data analytics technology that has the potential to reduce the instances of telephone fraud.
The approach is called “phoneprinting,” says Pindrop CEO Vijay Balasubramaniyan. “At a fundamental level what we’re doing is looking for characteristics that your phone device and the networks inadvertently introduce into the audio of the call,” he tells Datanami. “Currently there are about 147 features that we extract from the audio of the call, and we use this to essentially identify the device making the call.”