My participation in Kaspersky calendar 2016 - project where different illustrators create their vision about computer security and viruses dangers. My month is February, dedicated to REGIN virus, visualized in hacker character in headphones with laptop. He finds breaches in security system of communication company. 
Thanks to Ilya Kalimulin for invitation to this project. 
Here's full illustration:
Initial sketch:
Some closeups:
Thanks for watching!