The term "jailbreak" was coined by the users that broke into the first iPod/iPhone firmware, not Apple. The file with the key was called "lockdown.d" (or somet

The term "jailbreak" was coined by the users that broke into the first iPod/iPhone firmware, not Apple. The file with the key was called "lockdown.d" (or something of that nature) and so exposing the locked-down area was colloquially referred to as a "jailbreak".