The article considers the analysis of a crime under rule 230 of the Criminal code of the Republic of Kazakhstan (illegal actions in relation to insider information). The authors discuss the concept of insider information, the interpretation to the possibility of its misuse. A brief analysis of the object and the subject of insider information is provided, which serve securities, financial instruments, derivative financial instruments, and the approaches to their interpretation. A separate scientific classification of securities is given. The absence of a legislated list is emphasized. The content of the objective side is reviewed that lies in the restrictions on disposal and in the use of insider information. It is noted that insider information does not include information prepared on the basis of publicly available information or derived from media. The subject and the subjective side of the considered corpus delicti are allocated. The article discusses the European Union's approach to the legal regulation of market abuses, the establishment of strict administrative and criminal liability for insider dealing and market manipulation. The laws of some foreign countries on the subject are studied and suggestions for the improvement of certain provisions of the law are made.