The subject of the thesis is ethics and privacy protection. The aim of this paper is to show the importance and impact of business ethics with an emphasis on the protection of privacy in business and on the Internet. Various sources were used in writing the paper - scientific papers, professional books and the Internet. The scientific methods used in writing the paper are: method of analysis, method of synthesis and method of description. The right to privacy is one of the fundamental rights of every human being. This right must be respected no matter what, but nowadays, given the Internet, countless information and various information and communication technologies, this very right of people is often violated. The right to privacy may be restricted or violated by other people, businesses or the state itself. The level of privacy protection depends on the individuals themselves, ie on how much individuals are informed in a timely manner about how individuals/organizations will handle personal data provided to them by individuals and about companies/organizations/bodies that collect individuals' personal data. Today, the privacy of individuals on the Internet and the privacy of e-commerce users are most often violated. Namely, ethics indicates what is good and what is bad, but thanks to the Internet and the opportunities it offers for unethical actions, individuals often have problems with personal information breaches and data protection. In order to reduce the rate of unethical behavior and increase the level of privacy protection, it is necessary to make efforts to raise awareness of human rights, practice ethical behavior on a daily basis, severely punish unethical behavior, inform people about what data collection entails and for what purposes use and ensure the protection of databases in which they are stored.