By default, <code>/etc/shadow</code> is only readable by the root user.(Citation: Linux Password and Shadow File Formats)

The Linux utility, unshadow, can be used to combine the two files in a format suited for password cracking utilities such as John the Ripper:(Citation:
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: By default, <code>/etc/shadow</code> is only readable by the root user.(Citation: Linux Password and Shadow File Formats)

The Linux utility, unshadow, can be used to combine the two files in a format suited for password cracking utilities such as John the Ripper:(Citation: ### Response: T1003.008.