Okay, What Exactly Is Jailbreaking?
Jailbreaking refers to a series of hacks that are designed to create holes in Apple’s restrictions over what software can be used on an iPhone. This allows you to download software outside the App Store, and overcome other security limitations. Yes, this means you are hacking your phone. No, it doesn’t automatically load malware onto your phone – no one would use these hacks if they did.
Over the years, jailbreaking has become a common practice for a select number of iPhone users who dislike Apple’s restrictions, or really, really want a particular app that Apple doesn’t allow. Those come from highly developed “app stores” that cater to jailbroken iPhones, like Cydia and Rock.