When Apple unveiled its new iPhone two weeks ago, one of the immediate questions concerned the phone’s new fingerprint sensor. The sensor’s supposed to automate security. Rather than typing in a password every time you unlock your phone, you just press your finger to the phone’s home button. It’s supposed to create a world wherein stolen iPhones are useless to thieves. But does it actually work?

Because the iPhone’s sensor depends on essentially taking a high resolution photo of your fingerprint, a fake fingerprint printed at a sufficiently high resolution does the job just as well. Read more…