The mission Hack teh World is found late in the game. It begins with you meeting up with Ray on the beach.
Drop Ray Off
Drive ray to the house and...drop him off.
This part of the mission is pretty much impossible to fail, save for blowing up the car.
Plant an Exploit in the Satellite
After a little more driving around, you will learn that the first part of the mission has you hacking a Satellite before it launches.
Drive to the building, and try to enter. This will trigger a very simple and brief hacking minigame. If you need better vision, simply use your aerial drone to more easily hack the nodes.
Once the minigame is complete, enter the building. You'll quickly notice that the path you need to take is blocked by lasers and a guard. Distract the guard by hacking his phone, then hack the laser grid to shut it off. Quickly slip past the guard and go up the stairs on the right.
Follow the path until you end up inside the production building where the are building the satellite. This might look like it's going to be complicated, but don't worry! There is a very easy solution to this mission.
In the middle of the room, hanging from the ceiling is a large white container. Take control of it and move it over to you, lowering it in such a way that you can climb on top of it.
Once you're on top safely, raise the container up a few feet, then ride it all the way across to the other side of the room. Once over there, head towards the objective. There will be a laser grid, so disable it, then just around the next corner, look on the ground for a vent. This will let you get the Jumper drone into the room to open the doors.
Once the doors are open, go in, trigger the brief cutscene, then exit the room. Head back to that crate you rode on. Climb back on top, then ride it all the way back to where you started. Raise it up really high so you can gain access to the walkway, then hop off and interact with the panel on the side of the rocket so that you can place your custom motherboard into it.
Once this is done, simply use the stairs to climb down a few floors, and exit the area the same way you came in!
Wait for the Launch
This part of the mission literally requires you to wait. You need to let several hours pass in the game, so do some side missions or collect items. Eventually, you will get a message saying the next part of the mission is ready.
Once things are ready, head to the Hackerspace and watch the cutscene.
Invade Blume's Data Center
After the cutscene, you will be hacking satellites. Jump between the satellites until you can hack into Dublin.
You will now be accessing cameras in a hallway. Go into the far camera and turn right to see an alarm. Hack it so that it goes off, then switch to the other camera and wait. One person will leave, while the other eventually goes on her phone. When she does, you'll be able to hack her phone and get Access Keys. With these, hack the computer in the office to finish the Dublin hack.
Once you are back to the globe, switch between the satellites until you can hack Dubai. Before you can do anything, you need to wait for two men to enter the server room. Once they do, the computer tower in the smaller room becomes hackable. Hack into it to get the Access Keys, then switch over to the server room. Hack into every Red server you can to finish the Dubai section.
The next hack is in Seoul. Again, wait for a little bit, until several of the small computer towers turn Blue in your hacker vision. Once this does, begin hacking them, but pay attention to the huge monitor on the wall. You will notice as you hack PCs, that the blue lines on the monitor turn red. Your goal is to hack only the PCs that help turn things red. Switch between the various computers until you've turned the entire picture red and you'll be done this mission segment.
Back on the world view, hack into Delaware. Activate the first drone, then use that to activate the second. Use the second drone to fly towards the objective. Once there, hack the camera, then try activating the console. This will trigger a hacking minigame, so switch back to your drone.
This make look daunting, but this entire puzzle is very simple. Take the drone and fly all the way to the back of the room. Start solving the minigame by doing one tower, then the next. You will quickly see that, although there are a lot of points to hack, there is little challenge in lining them up.
Once everything is lined up, hack into the camera and activate the computer again. This will trigger a cutscene, and the mission will end!
Video Credit: “GamersPrey”