Renraku arcology meets Die Hard 4

An AI takes over control of the world ... with a mixture of cracking and social engineering.

The Goal? Who knows? They thereby blackmailing mafia kills spammers and investment companies paralyzes leaves the "daemon" does not seem so bad and brings in many perhaps sympathy.
The daemon was designed by a genius ... but a legend in the game development?
Where can lead only? What is its purpose?

The book describes an interesting scenario in which there is a break in the power structure of the world only by the ingenuity of man. A captivating sci-fi band with audience hackers and friends of dystopia. The interesting thing: The book is very realistic and does not play well in the future ... more of a broadly unchanged now.

The exciting thing - like the Daemon the world is occupied not so far-fetched as one can imagine and will want. This creates a lot of tension and after the action is once started rolling up the book evolved into a "page-turner".

That's the only drawback ... The complex story must first get the ball rolling which takes a few dozen pages to complete.