Human rights and freedoms, guarantees of their observance and protection should be the basis of the activities of any democratic country in the world. The issue of information security becomes particularly relevant in modern conditions, because medical institutions collect and store personal data of persons who contact them, the results of laboratory and instrumental research, diagnoses, medical histories, etc. Endless reforms, changes in legislation, introduction of an electronic system in the field of health care cause a lot of discussions about individual mechanisms of its functioning and ensuring the protection of personal data. The collection of personal data must be lawful, subject to strict requirements and for a legitimate purpose. In addition, persons or organizations engaged in the collection and processing of personal information must protect it from abuse and respect the rights of data owners guaranteed by law. The reform of legislation in the field of data protection should take place in parallel with the dynamic process of development of Internet technologies, including the creation of a formalized system of legislation in the field of privacy. In addition, considerable attention should be paid to the level of awareness of citizens about how their personal data may be collected and used. In particular, the request for consent to the processing of personal data must be clear; access to own data should be simplified and their mobility should be increased for easier transfer of data from one service to another; companies and organizations must report serious security breaches in a timely manner. And of course, ensuring the appropriate level of responsibility and reporting of all those involved in personal data processing. Health care is increasingly reliant on information technology. More and more hospitals and healthcare institutions are using information and communication technologies to support and improve their work. Digital technologies are widely used in the public health care sector, including electronic prescriptions, appointments with a family doctor, records of services rendered, hospitalization, hospital discharge, etc. In this context, a wide range of eHealth tools and services have emerged. Electronic medical records are created in such a way that it is possible to transfer patient data between different medical professionals. Although digital health technologies have so many important functions, their high dependence on sensitive patient health information can cause information security issues. At the same time, a significant part of personal health data is often collected without informing patients about it.