Is a jailbroken iPhone really insecure? we analyze it — 2022

Some of the great novels begin with the phrase When I was a child, which in its translation would be When I was a child. This article could not start in any other way, because when I was a child I loved to 'tune' my motorcycle with those exhaust pipes that allowed you to go over 50 km/h. Although all this at the cost of piercing the original exhaust pipe and losing the guarantee of my motorcycle, but that was cool, it made me feel bad...

Many of you will wonder what the simile of the motorcycle paints in a technical article regarding Jailbreak (JB). Well, I wanted to start with it because all of us who at some point have seen ourselves with the Jailbreak on our iPhone have felt the same as that 16-year-old boy: free, challengers and... forgive me for spoiling the party for you, reckless .

Is jailbreaking bad?

Jailbreaking itself is neither bad nor good, it's just a decision , you decide if you sleep with the window open on a ground floor because it's hot even if you assume the risk of getting a pot in the room. Well, in this case it's the same.


Why did I say that doing JB is reckless? Because today it has become a dangerous terrain. Before doing the JB to your device was more or less safe because those who promoted this research did it simply for the pleasure of knowing, all this despite the fact that this functionality was limited to a circle of advanced users due to its complexity. Today there are slightly darker groups.

Carry out the JB process requires modifications to CORE levels (core) of the phone and depending on the version of the phone it is sometimes done at the level of hardware drivers. This means that sometimes you run the risk of tweaking things on the phone that will give you a nice paperweight if something goes wrong.

Why Jailbreak? (Or not)

There are several profiles of people who install JB today, and you will hear many of them fool themselves when they say out loud that it is simply to customize their devices outside the yoke of Apple, something that has changed with the arrival of iOS 14 and thewide variety of applications that allows you to customize the widgetsfrom your iPhone screen, when they are simply looking to install pirated software. This is doubly counterproductive, since it takes away the small profit that software companies may have and what is worse: we add software without any control to our device.

It is likely that the iPhone is one of the devices with the best encryption within telephony mobile , but that is based solely and exclusively on our unlock code. Yes, that same code that you are asked for when you install something. If you install a third-party app without control, with obfuscated code that Apple has not verified and that does, among many other 'cool' things, sending your lock code to a server located in some computer paradise , aren't we sold?

From this moment we will have a phone that is an open book for the owner of this server, who will be able to be from home eating pipes and seeing everything you have on your iPhone. Although perhaps this is the least of it, because this person or organization may commit criminal actions in your name and all this with your mobile and your credit card . How is your body?

Why is the iPhone like an open book with Jailbreak?

When performing the JB, the user's account acquires device administrator permissions, in addition to removing many of the limitations that Apple places so that our device is very secure. In short, an escalation of privileges is performed granting full power to the user, including modifications to the operating system. Since then, our iPhone will stop applying many security measures that the JB process disables . The clearest example is the typical illegal software that asks you to uninstall the Antivirus to be able to install it, which is somewhat suspicious, isn't it?

You may now be wondering if all thedownloads outside the App StoreThey are susceptible to mistrust. my personal advice is install absolutely nothing that is not outside the App Store or that it is not from a company with an impeccable reputation. If you keep pulling the thread you will also realize that installing certificates from unverified developers and betas from dubious sites is just as reckless.

There are those who say that paying money to upload applications to the App Store and having a developer profile is foolish, which is as stupid as saying that an iPhone is only worth the €200 it costs to build it. This only shows a total ignorance of the matter.

In short, this article could be summarized in that the Jailbreak is not in itself a bad thing. What really makes the idea of ​​this bad is to install tweaks from pirated repositories that don't install malware . As some say, with great power comes great responsibility, and if you work in security, it's sometimes exciting to see how they managed to install Cydia on an iPhone through an exploit. But if you are a normal user who just wants to avoid paying the €3 that an app can cost, the JB can be your worst ally .