Lack of security of computer and its effects on industry, economy and government.

e.g.:Hacker is a good exaple.
you know, those guys often hack into others' computer and steal those important files. They do do harm to industry, economy and government.
Also, you can talk over the example of Mclaren and Ferrari in2007.
I wish i can give you a little help.Thanks.^^

The function of calculator has already become very strong in the modern, the many people depends on a calculator, the calculator can change their lifes, hence people put one of his information to the calculation on board, some persons with not thin intentionses want to take away in the meantime which can directly become the information of money, these people are so-called black guests.