7 Reasons Why iPhone Fingerprint Security Might Not Be So Secure

Apple's latest smartphone, the iPhone 5S, contains a sensor for unlocking the device with a tap of the finger, including those belonging to a growing number of federal employees. The Defense Department and Immigration and Customs Enforcement are just a couple of the agencies that issue personnel iPhones for work.

Access control is key for any government-owned mobile device, federal security standards stress.

It’s unclear whether federal employees will be required to use the new TouchID safety mechanism, but cybersecurity researchers voiced some skepticism about the tool’s protections upon its Tuesday debut.