This is a tutorial level so it isn't hard at all because the game tells you exactly what to do. Nevertheless I felt like I should also include it on my playlist.

In this mission your main task is to steal some money and upload a trojan to a bank's server. There is also a secondary objective that requires you to destroy bank's backup server in Australia.
You also have to deal with those tasks in 30 minutes and keep your trace level below 50%.

This mission is much more complicated than the previous ones. There's a long list of objectives.
First, you have to steal a file from Insysion's server. Then you have to disable the camera and access into the building. Next, you have to kill 2 researchers by turning off the oxygen supply, closing the secure access hatch and destroying environment control server.
Finally, you have to locate binary files from AI project and download them.

Another easy mission. You have to destroy all AI servers (by first discovering them), destroy the satellite and upload Y2K Virus to the Metallion server.
You have to do this stuff while keeping your trace level below 15%.

This level is very simple. It only requires you to steal 1,000,000$ and send the money to the specific server. Also you have to end the mission with 30,000$ on your account.
The solution is just clever juggling the money between the servers as shown in the video below.

This mission seems complicated when you look at the objectives but what you have to do is easy. Your task is to set up a fake account in Miami Bank and then send 1,000,000$ to it. And after it you have to create a distraction for your friend by turning some cameras off, turning some traffic lights green and by sending fake flight info to a traffic control server.

Even though it is the last level it is very easy. You just have to hack all the servers in shown order and then destroy the middle one as shown in the video below.

Be sure to rate the guide if you like it! I'm also looking forward to any feedback - feel free to leave it in the comments section!