Now that unlocking a new phone is under many circumstances illegal in the U.S. (!), Digital Trends has collected a useful set of answers outlining just what that means. As they put it, a "quick guide to answer all your why, how, and WTF questions." Among them, some explanation of the rule-making process, the reasoning that led to the end to the unlocking exception to the DMCA (including the Ninth Circuit's 2010 Vernor v. Autodesk decision), and illustrations of situations in which it is not illegal to unlock your phone.