What is jailbrakeing your iphone?

A lot of people have jailbroken their phone what even is it

The purpose of jailbreaking is to undo the limitations placed upon it by the manufacturer. Typically the purpose is to make it work independently of a contract provider such as ATT or Verizon.

Jailbreaking is the process of removing limitations on iOS, Apple's operating system on devices running it through the use of software and hardware exploits; such devices include the iPhone, iPod touch, iPad, and second-generation Apple TV. Jailbreaking permits root access to the iOS file system and manager, allowing the download of additional applications, extensions, and themes that are unavailable through the official Apple App Store.

Jailbreak - Jailbreaking is the name given to the process used to modify the operating system running on an iPhone, iPod touch, or iPad to allow the user greater control over their device, including the ability to remove Apple-imposed restrictions and install apps obtained and other content through means other than the official App Store (among the most prevalent of these alternative sources is Cydia).