The impact of judicial precedents in data breach cases on entrepreneurial activity: Current case studies

This study aimed to examine the impact of judicial precedents in cases concerning the leakage of personal and corporate data on the development of legal practice and business strategies. The research involved an analysis of key court cases, which made it possible to determine how these incidents have influenced corporate liability and behaviour. The study addressed cases such as Equifax, Facebook-Cambridge Analytica, British Airways, T-Mobile, and the Ukrainian mobile operator Kyivstar. The rulings in these cases not only imposed fines but also established new principles of corporate ethics, requiring companies to adopt a systematic approach to personal data protection, ensure transparency in user interactions, and strengthen their internal legal culture. The number of incidents continues to grow: since 2024, there has been a 25% increase in recorded data breaches compared to previous years. This demonstrates that data breaches are no longer regarded merely as technical issues but have become legally significant events with substantial economic and regulatory implications. In response, businesses are compelled to reconsider their strategies, implement new data protection policies, and incorporate potential legal risks into risk management frameworks. The practical significance of the issue lies in the fact that analysing major cases enables the forecasting of possible consequences of data breaches, the assessment of legal risk levels, and the development of effective strategies for accountability and prevention