It's a another whole world out there.

Right behind your computer screen is another world, where whatever you type, whatever you do, it'll be there forever, for everyone to watch and see over and over again.  Its a perfect place to hurt and ruin someone's life.  This world can either be a tool or a weapon.  It is used both now in our day in age.  People use it to help with their research, show off their ideas, and stay connected all around the world.  People also use it as a fighting tool against someone, to hurt someone, and even destroying cultures.