I was listening to a podcast ( Macbreak Weekly ) and Merlin Mann , writer , speaker & broadcaster made the following statement on computers and software.
"Software is just software , it's not magic
Software is telling a machine how to do something & machines are not smart.
People are kind of smart , but the machine is always right , and it's we that are wrong and the programs we make are imperfect and things change.
Nobody is completely current or completely safe."