In a land ravaged by corporate war and greed, where private enterprise is no more and goverment is just a shadow of its former self. states and country are no longer run by governments but why large corporations. Private security are the new police and crime organizations are a strong presence keeping the so called government down. corporate war is no longer fought in boardrooms and stock markets but on the streets and on the net. The year is 2072 years after the major battles of the corporations. There is now but the major big ten that rule the world. In this world the rich of the rich are less than 1% of the population. poverty and crime are rampant in the street and people turn to the matrix(aka the net) for a brief vacation from reality.
After that, take a look at your wiki. There is some more helpful info there.