While in the FLux you will see a Quasar Machine that has a strange signal coming from it. It traces to the following place in order:

Wards Access Corridor: From the Medical Clinic, go to and up the elevator that takes you toward the Presidium. Take this corridor to a little area where people are talking. Check the terminal on the wall.

Financial District: Volus' Office, behind Volus.

Emporium: Turn right coming out of Volus' office and go past the Emporium Shopkeeper to a back hallway. Then, turn right again. Here you will encounter an A.I. that threatens to blow you and itself up. After the conversation select the A.I. and input the following code to override: Y, X, Y, A, X, A, A. Finish before it is done Siphoning off credits and you will get those credits. The amount varies, but you will get more the faster you enter the override code.