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Root access can be obtained through the use of software exploits (i.e. bugs), through the bootloader console, or over a serial port embedded in the device, such as a JTAG or UART interface. [1] In the case of gaining root privileges on an Android device, the process is known as rooting.
A rootkit is a collection of computer software, typically malicious, designed to enable access to a computer or an area of its software that is not otherwise allowed (for example, to an unauthorized user) and often masks its existence or the existence of other software. [1]
Rooting [1] is the process by which users of Android devices can attain privileged control (known as root access) over various subsystems of the device, usually smartphones and tablets. Because Android is based on a modified version of the Linux kernel , rooting an Android device gives similar access to administrative ( superuser ) permissions ...
Using a manufacturers method almost always factory resets the device, making rooting useless to people who want to view the data, and also voids the warranty permanently, even if the device is derooted and reflashed. Software exploits commonly either target a root-level process that is accessible to the user, by using an exploit specific to the ...
An exploit is a method or piece of code that takes advantage of vulnerabilities in software, applications, networks, operating systems, or hardware, typically for malicious purposes. The term "exploit" derives from the English verb "to exploit," meaning "to use something to one’s own advantage."
iOS jailbreaking is the use of a privilege escalation exploit to remove software restrictions imposed by Apple on devices running iOS and iOS-based [a] operating systems. It is typically done through a series of kernel patches.
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Devices can also be bricked by malware (malicious software) and sometimes by running software not intentionally harmful but with errors that cause damage. Some devices include a backup copy of their firmware, stored in fixed ROM or writable non-volatile memory , which is not normally accessible to processes that could corrupt it.