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How to fix some mysterious problems.

Hi. I was wondering how you create a new jailbreak.

  • What tools (software/hardware) do you use?
  • What is the recommended knowledge (i.e. study these books first)?
  • How do you find a new exploit?

I most probably won't have the time nor the skills (sigh) for serious development, but still I am interested and curious about the theory, and I would like to learn more.

Any suggestion is appreciated. Thanks!

asked 31 Jul '11, 06:34

shuusaku's gravatar image


edited 17 Nov '11, 15:12

britta's gravatar image


thank you for the information...

(13 Sep '11, 23:42) sahaya sahaya's gravatar image

For those interested, Stefan Esser, also known as I0n1c, the hacker behind the iOS 4.3.1 untether has created an amazing presentation on the latest iOS jailbreak techniques. Esser made the presentation for Black Hat last month.

Click here to download the 97 page presentation.


answered 13 Sep '11, 20:39

shuusaku's gravatar image


I was about to answer with that :)

(13 Sep '11, 22:41) JonSeals ♦ JonSeals's gravatar image

Too late :-)

(13 Sep '11, 23:41) shuusaku shuusaku's gravatar image

As you know, yesterday there was MyGreatFest ( in London Some presentations can be viewed here The presentations do not seem to be as good and as informative as the one of I0n1c, but still they are something useful to have as a reference.

(17 Sep '11, 21:02) shuusaku shuusaku's gravatar image

Go read up on, if you can digest all that info then go speak with the hackers on IRC


answered 31 Jul '11, 06:54

venusanann's gravatar image


ok thanks.

(31 Jul '11, 06:59) shuusaku shuusaku's gravatar image

This will be helful too:

(31 Jul '11, 09:45) spockers ♦♦ spockers's gravatar image

A couple more things to look into for anyone interested in userland jailbreaking would be this analysis of JailbreakMe along with the JailbreakMe code itself.

There's also a book coming out next year that should be pretty good: iOS Hacker's Handbook.

And you can also start with Wikipedia.


answered 17 Nov '11, 15:08

britta's gravatar image


edited 17 Nov '11, 15:11

Thanks for the info, @britta! :-)

(17 Nov '11, 16:56) shuusaku shuusaku's gravatar image

answered 15 Oct '11, 20:49

shuusaku's gravatar image


This book seems very interesting, too:

iOS Hacker's Handbook
by Charlie Miller, Dion Blazakis, Dino DaiZovi, Stefan Esser, Vincenzo Iozzo, Ralf-Phillip Weinmann

Book Description

Discover all the security risks and exploits that can threaten iOS-based mobile devices iOS is Apple's mobile operating system for the iPhone and iPad. With the introduction of iOS5, many security issues have come to light. This book explains and discusses them all. The award-winning author team, experts in Mac and iOS security, examines the vulnerabilities and the internals of iOS to show how attacks can be mitigated. The book explains how the operating system works, its overall security architecture, and the security risks associated with it, as well as exploits, rootkits, and other payloads developed for it.

Covers iOS security architecture, vulnerability hunting, exploit writing, and how iOS jailbreaks work Explores iOS enterprise and encryption, code signing and memory protection, sandboxing, iPhone fuzzing, exploitation, ROP payloads, and baseband attacks Also examines kernel debugging and exploitation Companion website includes source code and tools to facilitate your efforts iOS Hacker's Handbook arms you with the tools needed to identify, understand, and foil iOS attacks.


answered 27 Nov '11, 22:41

shuusaku's gravatar image


edited 27 Nov '11, 22:42


I always tell people if you have to ask where to start reading, you do not have what it takes to succeed at this


answered 15 Oct '11, 22:56

dhlizard's gravatar image



It's ok to ask for tips on where to learn about these things for fun, even if (as the asker said) they might not have the time required to develop the skills for actually finding exploits. :)

(16 Oct '11, 00:39) britta britta's gravatar image

well you have to start somewhere

(16 Oct '11, 00:44) 1L1keTurtles 1L1keTurtles's gravatar image

Luckily we have people like you who know where to start and what to do without asking, @dhlizard. I know I am no good at all (I think I was clear on that), that's why I have to ask :-)

(16 Oct '11, 02:55) shuusaku shuusaku's gravatar image

My point is, to be successful/competant at any endeavor (such as jailbreaking or hacking) you need to be a self starter. In this day and age, there are a hundred-thousand resources no farther away than the touch of your keyboard. I learned how to do my first jailbreak (in the early days when a jailbreak had a dozen different processes to complete in a specific order) by researching it online. There are many who are self starters in this community, but sadly there is a group who like to be spoon-fed. The self starters generally can reach out for the resources that already exist, digest the information and move forward. The latter group lacks the strength to look for themselves, and often does not progress beyond the "show me" stage.

(For any wondering, the reason I resurrected this thread, is I was just downvoted this month for a 3 1/2 year old response - felt some clarification was in order)

(27 Jan '15, 08:59) dhlizard dhlizard's gravatar image

Keep waking old posts and you'll get downvote even more. This forces current questions off the first page making it less likelY users get answers to their questions

(27 Jan '15, 09:08) Tilerone Tilerone's gravatar image
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Asked: 31 Jul '11, 06:34

Seen: 53,372 times

Last updated: 27 Jan '15, 09:11

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