Image via BioWare

Subsequently yous've completed Kasumi's loyalty mission in Mass Effect two Legendary Edition, she recovers the graybox that contains various secrets near the Alliance subconscious within it. It's also tied to the memory of Keiji, Kasumi'south professional partner and hinted lover. She has a choice to destroy the graybox or hold on to information technology, potentially having it leak elsewhere, damning the Brotherhood in the future. Shepard has the option to persuade her i manner or the other.

Kasumi keeps the graybox

If y'all convince Kasumi to keep the graybox, she'll keep it, and she'll always have it on hand. Should she ever decide to turn on the Brotherhood or give them more than problem in the future, she has enough dirt on them to brand information technology really hurt.

Kasumi destroys the graybox

If yous convince Kasumi that it's a meliorate idea to destroy the graybox, ensuring she's no longer a target, she'll have trouble doing it. You can do it for her, or you tin can convince her it's better she does it herself, simply it volition be destroyed, and she won't have to worry about information technology anymore.

Regardless of your decision in Mass Effect 2, Kasumi will become loyal to yous. None of the choices practice effect in a negative action. Unfortunately, nothing happens with the graybox because these details were previously DLC for Mass Result 2 when they were initially released, so it can't accept a massive impact in Mass Effect 2 or 3. The merely big thing that can happen in Mass Effect iii is if you don't complete Kasumi's loyalty mission. She will appear in the game, merely she does not join your state of war effort.