This achievement is very simple but probably not something you'd normally think of doing while you're playing the game.
Towards the end of the game when you're at the top floor of the Prune Inc building (where you see BJ in most cutscenes) you'll be talking to Anu. During the dialogue there will be an option talking about Ctrl + B, you can select that dialogue option though I'm pretty sure it doesn't matter. After this point you can click
+
+
+
all at the same time and that should bring up a menu that pops your achievement. To exit the menu just do the button combination again.
Edit: You may be able to do the button combination earlier in the game but there are conflicting reports of it working until after that dialogue or not.
I hope this guide helped and happy hunting!