Information is an extremely important and integral part of human life. This fact is best reflected in personal data, which is a kind of identifier, without which it would be difficult to function in society. Information is a valuable asset, but it is not always used in the right way. Very often there are situations in which information is obtained illegally, by unauthorized persons. The article discusses the four main ways of unlawfully obtaining information, which include breach of confidentiality of correspondence, wiretapping, wireless access, and hacking. The equally important threat of phishing was also mentioned. Since everyone is vulnerable to unlawful acquisition of information, it is very important to know how to protect yourself from it. Proper prevention is the
basis of safety.