Portia takeing over the world.

I was watching Discovery Channel last night and it was a documentary about spiders. And at the end they show a Portia. The Portia was trying to catch a smaller spider that was in it web. The problem was that the web was to thing to support the the weight of Portia. So the Portia started start tapping the web simulating a fly captured on the web. But the small spider realized that is not a fly and started shaking the web violently (this is a way to intimidate the predators). The Portia apparently give up and walk away. But... after a appear on the top of the net and start diving in to the small spider from above hanging from it's own string. In the final the mission was a success. He captured his prey. So as you can see this spider is very smart. It is to smart for the size of his brain. I think is even smarter than a mouse. When was the last time you seen a mouse make plans, except cartoons.
I was thinking that maybe we can make computers with spiders brain. I now it is inhuman but is for the good of the man kind.
So the idea is that if we will be able to tap in to the brain of a spider and connect him to a computer. Considering the fact that a brain is a adaptive neuronal network, we can make it resolve any problem with some training. This way will have a real biological neuronal network because a neuronal network is extremely hard to simulate on the computer. Connecting multiple cells like this based on spider brain we will create a supper cell that will be extremely smart. Maybe more smart then a human.
But the problem is that if we use spider brain for our computers, maybe at some moment the hunting instinct will kick back and we will get a big supercomputer that is wanting to hunt something. And guess what will be the most convenient prey ..... people !.