Data is one of the most valuable parts of every business model. In order to obtain data integrity many organizations are moved to securing the data in definite manner. We should consider the data security for business behavior in the changing world. Data security is defined by the process of protecting information from unauthorized use. An example is the use of credit cards numbers on the Internet to purchase merchandise and services. Without data security measures in place, unauthorized persons can access the information, in another word Data security is the means of ensuring that data is kept safe from corruption and that access to it is suitably controlled. We can define that security software is a programs that are used to restrict access to the data and files on a computer.
Thus data security helps to ensure privacy. It also helps in protecting personal data. In order to provide trusted security system we go for linux security software which helps system administrators to be aware of the tools hackers employ and the software used to monitor and counter such activity. All people like to test the integrity of different servers. By applying passwords and secret questions to protect the data. The most familiar methods for any website security system is digital certificate system which ensure the SSL transcription or 128 bit transcription of all your information.