Summary:

The aim of this study is to recognize the reality of the security of information systems in commercial banks in Libya, And the risks that may occur in these banks, which have a negative impact on their performance and to identify the impact of information systems penetration of banks in economic terms, And knowledge of preventive measures in the banks to prevent the exploitation of security vulnerabilities, This study provides a vision for the development of the security of information systems in the bank, and through sheer study in one of the commercial banks in the Libyan city of Gharyan, a branch of the Commercial Bank of Gharyan , Researcher has used the descriptive analytical method used and the way the questionnaire as a tool of tools for .data collection 

The study found a number of conclusions about information security in the Libyan banks, from these results that there is no risk about the information systems in the bank, but on the other hand, computers are unsafe in the bank, if happened any penetrate on the information system of the bank, the impact will be negative. The preventive measures taken to prevent the exploitation of security gapes is not enough, and that the reality of the security of information systems in the bank at the middle level and is need to develop.

The study recommends a range of measures that could be taken to contribute to the activation of information security in commercial banks, as well as increased preventive measures to prevent the exploitation of security .vulnerabilities in the banking system