E-commerce is a form of commerce where goods or services are sold through electronic systems, such as computers, tablets and mobile phones. It covers a wide range of activities, including selling, buying, shipping and paying for goods via the Internet or other electronic systems. E-commerce can also include the exchange of information, such as prices, product descriptions and user ratings, and communication between merchants and customers. The advantages compared to a traditional store are certainly the possibility of shopping 24/7, easier availability of products, the possibility of comparing prices and adaptability to shopping. It also enables merchants to sell their products and services in a wide area, even outside their geographical area. However, e-commerce also has some disadvantages, such as potential security risks, dependence on technology, difficulties in contacting customers, and packaging and shipping costs. GDPR (General Data Protection Regulation) is a regulation of the European Union that regulates the protection of personal data of EU citizens. The Regulation contains numerous provisions related to the collection, processing and use of personal data, as well as the rights of individuals in relation to their data. Some examples of provisions include the right to access, correct and delete data, the right to data portability, the obligation to inform about data collection and the obligation to ensure data security. The GDPR also has provisions relating to electronic commerce. The regulation requires e-commerce service providers to clearly inform users about the collection and processing of their personal data and to obtain their consent for such processing. Also, service providers must ensure data security and take appropriate measures to prevent unauthorized access or data leakage. Users have the right to request the deletion of their data from the electronic commerce service provider's system.