Computer software for use in the field of computer security, specifically, working for the monitor, detection, interception, diagnosis and therapy of computer virus; computer softwares for use in the field of computer security, specifically, by providing the function of protection precious data and information by preventing unauthorized user from accessing; computer with pre-installed software for use in the field of computer security, specifically, working for the monitor, detection, interception, diagnosis and therapy of computer virus; computer with pre-installed software for use in the field of computer security, specifically, by providing the function of protecting precious data and information by preventing unauthorized user from accessing; computer memory cards for use in computer security; embedded computer chips in symmetry-key algorithm for use in computer security; encoded smart cards used in the field of security, containing programming, specifically to the monitor, detection, interception, diagnosis and therapy of computer virus; encoded smart cards used in the field of security, containing programming, specifically to protect precious data and information by preventing unauthorized user from accessing; computer e-commerce software to allow users to perform electronic business transactions; computer memory chips for use in computer security; fingerprint sensors for use in computer security; pupil recognition sensors for use in computer security