When Apple announced their new iPhones at the company’s recent September 10th event, a number of innovations were introduced into the new 5s line, led by the “Touch ID” fingerprint scanner. Afterward, Touch ID received some uncertain feedback from podcasters, bloggers and tech fanatics, many of whom questioned its overall security. Of course, Apple wouldn’t (shouldn’t) release it unless they know it works most of the time and is safe (or they just have a good lawyer).

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The Setup Success Screen

One concern was that thieves, for some crazy reason, would want to get into your iPhone so bad they would cut off your finger to get the fingerprint. This concern spread about, prompting Apple to address it:  “The technology is built in a way that the (fingerprint) image has to be taken from a live finger,” says Sebastien Taveau, chief technology officer at Validity Sensors. “No one in biometrics wants to talk about cut fingers and dead bodies, but at the end of the day we are still asked to remove the fears of consumer and make sure that they understand that (a severed finger) will not work.” The way it does that is by using radio frequencies to detect “sub-epidermal” layers in your skin which only work if you are alive. So, if you were worried that someone would cut off your finger to look at your worthless emails and wickedly change your Facebook status, you’re thankfully wrong. In other words, it appears Touch ID is safe after all. Then again, who knows how easily someone could hack into it, but let’s not worry about that right now.