I want to make a figure that describes the the system architecture, but I am not able to make a figure that looks clean and professional like this one:
[![Architecture Design](https://i.stack.imgur.com/PGyAc.jpg)](https://i.stack.imgur.com/PGyAc.jpg)

My Question: is there a piece of software that draws the components of the figure with same style (Computers, Hacker icons, and rectangles)?

I tried to make something that looks like this one using Adobe Illustrator, but I didn't find the appropriate icon set to have a clean figure.

Please can you help me to make clean figures like the one in the example.
Thanks,