Good idea and atmosphere! The music fits and sounds are not bad at all. I would decrease the number of wires to 5 or 4 or maybe implement more types of terminals with different ammount of wires based on difficulty of the terminal. Also I kept getting stucked on walls - making the movement tile-based would be good but probably would take away part of the fun with stealth. And last think - I got detected through walls few times.
Anyway - solid game with good idea and atmosphere. Beside what I mentioned it was fun to play! Good job! :)