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.Now researchers can fool fingerprint scanners with an ordinary inkjet printer

News Summary:

Researchers at Michigan State University, were able to demonstrate how an inkjet printer can print a 2D image of a fingerprint in order to unlock smartphones.

News Content:

The dawn of the fingerprint sensor finally brought convenient security to our smartphones, or so we thought. Researchers at Michigan State University, however, were able to demonstrate how an inkjet printer can print a 2D image of a fingerprint in order to unlock smartphones.

The secret is in the ink and paper. You’ll need to use silver conductive ink, which is designed to print circuit boards, and a special paper designed for printing electric circuits. The researchers used AgIC silver conductive ink cartridges, as well as AgIC conductive paper. The cartridges come in a three-pack and replace the Yellow, Magenta, and Cyan colored cartridges in the inkjet printer.

The other major step is grabbing the fingerprint itself. The fingerprint image was achieved by scanning a finger at least 300 dots per inch (dpi), followed by reversing the image in a horizontal direction.

Once printed, it’s a simple as cutting the paper down to a little larger than the fingerprint itself. The experiment involved placing the small piece of paper with the printed fingerprint on the sensors of the Samsung Galaxy S6 and Huawei Honor 7.

The report implies this method can be done on most smartphones with a fingerprint sensor, but an iPhone was never used in the demonstration. The researchers said newer phones might not be able to be spoofed, but they didn’t get into specifics.

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