This will unlock after you complete Whistleblower.
Head for your waypoint and hack the jammer. Follow your marker to the building, hack the ctOS box, then when the conversation ends, hack the answering machine.
Follow your waypoints to find the two people you need to hack. Just use your quadcopter to get the one in the restricted area and the other is just standing in the street. Once they’re both hacked, it’s onto the next section.
Go to the waypoint, but don’t bother sneaking in or anything. Simply send your quadcopter over to hack the laptop and bingo, that’s you finished this operation.