Massive data breaches, involving both personal data and business information, have become one of the most serious challenges of the digital age. During the discussion, we will analyze the anatomy of modern incidents—from human error and effective social engineering campaigns to sophisticated attacks on organizations and their supply chains. Together with experts, we will discuss the long-term consequences of breaches, including the costs incurred by businesses, public institutions, and citizens. Above all, however, we will highlight proven response methods and actions that help mitigate the impact of an incident and regain control of the situation before it escalates into a major crisis.