Outside the Wire

Outside the Wire is a Brotherhood of Steel main quest in Fallout 4.

Detailed walkthrough
During your infiltration of the Institute, Proctor Ingram has ordered you to steal data from one of their terminals using the network scanner holotape. This holotape may also have been given by another faction.

Access the terminal at the Institute relay area and entrance, insert the network scanner holotape, and remove the data. Then simply continue the rest of Main Quest: Institutionalized. Return to Proctor Ingram and give her the data.