They realize that it would be unwise if the information got into the wrong hands. The environment that Gibson places his characters is a futuristic computerized and technologically advanced world. It is one in which the physical atmosphere has changed into a dark and sadistic place. The physical environment has altered due to the past violent history. Material things have also changed.
Cars hover and fly through the air.
Clothing material and styles transformed. Societal illnesses, however, have remained a constant throughout times. Characters still drink a lot to relieve stress and entertain. Drugs are used widely. A choline enhancer used by some individuals is a nasal inhaler, that when sprayed, give the user a controllable high.