Researchers at the Black Hat Security Conference this Thursday uncovered another flaw in Square Mobile’s payment system that makes credit account theft with the device an easy mark.
Square is a payment system that allows card-swipe credit purchase to take place on your iPhone or iPad. Using a dongle that can be purchased at Apple retail stores or online at the company’s website and the free Square app, users can swipe a credit card for payment transactions. The company has skyrocketed to success over the past year and now boasts four million dollars per day in transactions.
Researchers Adam Laurie and Zac Franken of Aperture Labs were the ones to drop the bomb at the recent tech event in Las Vegas. They were able to hack Square’s system using a homemade software application and an iPad-compatible audio cable.
According to InformationWeek, the Square’s dongle converts credit card magstripe data into audio, which the iOS application then listens to and translates back into credit card numbers. Laurie explained that the product was rushed to market without considering the security risk involved in something that could be so easily hacked.
Laurie demonstrated that, by typing in a credit card number into a laptop that was plugged into his iPad, and using the homemade software application, he could send the audio to Square to be translated into a transaction, as if the dongle had been physically swiped.
This makes the theft that much easier because criminals would not need a physical credit card in order to deplete a victim’s account. According to InformationWeek, credit card numbers can be purchased easily on the black market for as little as $2. Criminals could funnel as much stolen money into a bank account as fast as their fingers could type, and as long as the cover their tracks, they could get away with the faceless crime without leaving their basement.
Square has not issued an official statement in response to Laurie and Franken’s discovery, but InformationWeek notes that the company has updated its dongle to encrypt credit card data, but this does not solve the issue that the due demonstrated at the conference.
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