Jailbreaking an iOS device in order to install unofficial apps, add customization options or simply to unlock a locked device has gotten tougher, as evidenced by the hacking community's inability to produce an untethered jailbreak for iOS 6. In a recent tweet, hacker i0n1c has revealed that the forthcoming iOS 6.1 update adds "again tougher protections" to the codebase even compared to iOS 6, suggesting that security has been dramatically improved.