Find this one on the Standford campus.
Spoilers
Go to the Ubisoft San Francisco office. When you get there, from facing the office, head left around the side of the building to find a parking lot and a scissor lift. Get in the scissor lift and head over to the archway with the bushes on it and ride it up.
Use the ladder to get onto the roof, then hack into the ctOS box. When inside the cameras, hack the two highlighted computers to get a look at a trailer for a supposedly real game that Ubisoft are actually working on out here in the real world. When the trailer ends, that’s the operation complete.