In this study, elementary and high school students' information and computer security awareness levels were investigated. Information and Computer Security Awareness Scale was developed by the researcher and it was applied to 2447 students in the schools in center of Kahramanmaras City, towns, small towns and villages of Kahramanmaras province. For data analysis the statistical analysis program was used. Consequently it was found that students have sufficient awareness level in terms of ethical issues. However, they have low awareness levels in terms of issues that require knowledge about rules. It can be deduced that information and computer security awareness education and related activities are insufficient. If these courses' hours can be increased, students' information and computer security awareness can be enhanced and negative effects of internet can be controlled.