In 2011, Saudi cleric Muhammad Al-Munajid responded to a question posed on a TV show, saying: "On the face of it, using jailbreak in order to enable a device to download a program, is not forbidden by the shari'a, but Allah knows best." The program aired on a tech show on Al-Majd TV on April 2, 2011.
Following are excerpts:
Interviewer: Is a Muslim, or anyone, allowed to use jailbreak on iPhones, or on any other device? This is the question that we will discuss today on our program, with our sheikh Muhammad Al-Munajid.
Jailbreak is a program that modifies the operating system of a device, in order to remove the restrictions imposed by the company that developed the operating system. It makes it possible to download programs that are not endorsed by the manufacturing company.
On the face of it, using jailbreak in order to enable a device to download a program is not forbidden by the shari'a but Allah knows best.
On the face of it, jailbreaking is not prohibited, while cracking is.