The Security Manager Office is a room at Sarif Industries Headquarters. It is located on the third floor and overlooks the atrium. It features a level 3 secured computer and an unlocked security terminal that is used to control the building's defenses. The room is currently occupied by Adam Jensen, who doesn't seem to take good care of it, as it is always disorganized.
Jensen's personal computer can be hacked twice (second time on return visit) or accessed with a password (mandrake) from Pritchard.
Jensen's personal computer is also exploitable to create an 'xp loop' where saving before completing the hack stacks previous experience, making it possible to get maximum augmentations early in the game.