It looks and sounds like Nameless: The Hackers.
A description as written by one of the developers:
Nameless: the Hackers RPG is a cyberpunk adventure game that combines a visual novel style system (looks sort of like Phoenix Wright) with classic turn-based RPG battle mechanics with a twist. Battle through server rooms and elite hackers with specialized Bots, viruses and other romanticized computer science moves!
The game plot is surrounded around a group of hackers who are hired to find a runaway computer scientist who has apparently uncovered something big, and it turns into a big conspiracy. The story is actually a little similar to the Snowden events (but we released the game before the whole thing came out). You'll just have to play it for yourself.
This is a screenshot from a gameplay trailer on YouTube. The character highlighted in your screenshot is called Tiny. The use of HackChat and the desktop and its wallpaper and folders are likely part of a specific mission, which I have been unable to find in the linked video.
The game was released in 2013 (source).
And, finally, here is the official site.