The use of the Internet is spread over all areas of our lives. However, its features raised serious social issues due to unethical behavior. To understand the level of Internet ethics among undergraduate students, a survey questionnaire of 31 questions regarding netiquette awareness, ethical norms, information credibility, and personal background is devised; data was collected from 830 students. Descriptive analysis shows low level of netiquette awareness, considerable deviation from six categories of ethical norms and problems of network information credibility. Results of statistical testing show gender and grade level as factors affecting Internet ethics. However, there is no significant difference in Internet ethics depending on related education experience. Based on the results, recommendations to promote Internet ethics are suggested.