There's been a lot of talk about Touch ID troubles in the news lately. Ars Technica's Christina Bonnington wrote an excellent explainer about the iPhone 5s's sensor itself, along with some typical issues users might run into over time, while engineer and pundit Dr. Drang wonders if your recorded fingerprint data might decay after a few months of misreads, given that the Touch ID sensor is continually trying to improve the information it has on your fingerprint.Touch ID certainly isn't perfect: As someone who's been using it since I picked up my iPhone 5s on launch day, I've had my fair share of frustration--especially because I swapped out my simple 4-digit passcode with a multi-character alphanumeric version.But despite its occasional malfunctions, Touch ID has become one of my favorite features on the iPhone. To make sure it stays one of yours, too
