Jailbreaking is the process of removing software restrictions imposed by the manufacturer on devices like iPhones and iPads. This allows users to gain root access to the operating system, enabling them to install applications and tweaks that are not available through the official App Store. While jailbreaking can provide more customization options and access to third-party apps, it also comes with risks. It can void warranties, expose devices to security vulnerabilities, and lead to instability in the operating system. Users should weigh the benefits against the potential downsides before deciding to jailbreak their device.