It can be used as both. Sooner than naught, they will be used to control us. Our money, our freedom and our privacy. Everything is being built for faster, more convenient and less hassle. Already, there is now a creation which people have decided to make a part of themselves. A device called a microchip. Much like what they place in a dog or cat to track them. These will have a barcode, turning humans into a living computer. They will track your bank accounts and work like credit cards and they will hold all of your personal information making it "easier" to enter and exit other countries, buy, sell and trade. They can only be placed in your forehead or your right hand because of the temperature in those places. This, in the Bible, is referred to as the mark of the beast. It is in effect now. People actually have them. You will have your choice to receive it or not. Be aware. If you are a child of God, or choose to be, do not receive this. If you look on a form at your local DMV when you are getting an ID or license you will see that the number upon that form is 666. It made me afraid to get my ID. Although, I realize I am not giving up my freedom as a human as long as I don't take it into my hand or forehead. I hope that this sheds light and answers your question. Let's fight the good fight of faith as Children of God.
16And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads:
17And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.
18Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six.
The Holy Bible