This key data is located inside a container in the cliff-side portion of the Cliff House. The area is restricted with a good number of armed guards and the data container itself is located on the far corner of the veranda/porch facing the shore. If your quadcopter can drop explosives / ESDs, you can use that to clear the area since there’s only one bottleneck that the hostiles need to go through in order to search the area. This bottleneck will make it hard to sneak without risking of getting detected. After clearing out the place, you just need to simply walk and grab the data container without any resistance.
This is found in a gazebo within the restricted New Dawn compound. You can get it during the story mission where you have to infiltrate it or you can get it anytime you want. If you visit the area early in the game, there are no guards (at least when I checked it) so you can just walk in and pick up the key data with ease. Otherwise, you can just scout with your quadcopter overhead then send your jumper to pick up the key data in a container in the open. Use the many covers and your jumper’s low profile to get it easily.
The data container is found inside a small room in the southeastern corner of the Sutro Tower compound. Move around the perimeter fence near the key data’s location and you’ll find an opening in the fence where your jumper can go through. Once inside, find the opening on the wall to reach the data container and collect the key data.
This is a fairly large compound with several armed security personnel. The best point of entry is the small alley in the southeastern side of the compound where there’s lesser number of guards. The data container is inside the container van with a vehicle inside. Deploy your quadcopter to remotely start up the vehicle and have it removed from the container van. From here, you can sneak inside yourself and climb inside the container van to pick up the data container or if you don’t want to risk getting spotted, you can send your jumper to do it though the container van may be too high even with Enhanced Springs upgrade without the help of a foothold. (You can use the vehicle you removed from the container van)
This is found in a small restricted area southwest of Nudle Park. There are several Uemeni security corp personnel inside and a couple of guard dogs. The data container is located inside a container van with the entrance blocked by a stack of boxes. Since the area is small, it’s hard to sneak inside but if your jumper has the Enhanced Springs and Speed Boost upgrade, then you can have it sneak inside and use the nearby stacks to reach the container van and reach the data container. Otherwise, you can just simply wipe out the guards and stun the dogs so you can just walk in and deploy your jumper in the opening of the container van.
First, head to the northern side of the building to find a window washer platform that you can use to reach the rooftop. Ride it to the top then enter NetHack view to find the key data marker. Follow the marker until you see the opening in the rooftop nearest to the Key Data marker.
Drop inside the prison building, locate the open cell with a vent then send your jumper inside. Jump on the ledge to reach and hack the router containing the key data.