Find this one in the parking lot on the coast North of the Palace of Fine Arts.
Follow the waypoint to the Fort and go inside to find the correct room. There are no guards so you can just sprint there. When you get there, hack the objective, which you’ll find locks you into the room. Hack the security router to start the puzzle. Despite seeming complicated, it’s a simple connect the dots scenario, do so to get yourself back out of the room.
You need to physically hack the panel, so head over to it and hack it to get access to the cameras inside. Hack the server to complete.