Rogue VI

Rogue VIs are rather self explanatory; that is, a Virtual Intelligence that has gone rogue. Rogue can have several meanings, but as VIs are not AIs, nor do they posess the software or hardware to become such, it does not mean that they are self-aware.

As such, a VI going rogue is akin to software not working correctly - that is in fact the cause, but not the definition. A VI is rogue when it no longer does what it is intended or instructed to do; this can be anywhere from targeting friendlies to going on a random warpath. This is what gives rogue its definition - had the VI simply not worked, it would be more broken than rogue.

It is noteworthy that Commander Shepard was tasked by Admiral Hackett with deactivating a VI that had gone Rogue in a training facility on Luna.