it is very obvious that we are living during the last decades an era of information, where the one who controls it makes his hands on an enormous power. One of the most known forms of the use of information is through information systems. These Systems tend to collect, process and produce information from raw data. These information systems take many forms and play a major role in the success of not only individuals and organizations but even whole governments. Consequently, information systems are open for continuous attacks and threats that may damage the quality of information that they are producing. For this reason, we are discussing in this paper the different aspects and criteria for considering a good information system, particularly from a security point of view. Then we focus our efforts on increasing information security inside information systems through proving the existence of the relationship between software quality and information systems’ security. Finally we discuss how software quality can be increased in order to secure information systems from deficiencies
