Modern web apps face significant data privacy challenges, primarily stemming from the vast amounts of personal data collected and processed. A major concern is ensuring informed user consent and transparency regarding data usage, as complex privacy policies often go unread. Furthermore, the extensive use of third-party integrations for analytics, advertising, and functionality introduces multiple points of data sharing and potential vulnerability. Developers struggle with securing complex data flows across distributed systems and cloud environments, increasing the risk of data breaches and unauthorized access. Finally, staying compliant with a fragmented landscape of global data protection regulations like GDPR and CCPA adds another layer of complexity, demanding robust privacy-by-design principles.