19.1 Introduction19.2 Fundamental Concepts of Data Privacy and Protection19.3 Legal Frameworks for Data Privacy and Protection: Overview of Global Data Protection Laws19.4 Rights and Principles Underpinning Data Privacy19.5 Challenges in Implementing Data Privacy Regulations19.6 Ethical Considerations in Data Collection and Usage: Transparency and Informed Consent19.7 Emerging Technologies and Ethical Dilemmas: Impact of AI, IoT, and Biometrics on Data Privacy19.8 Legal and Ethical Reactions to Data Breach and Privacy Incidents: Legal Requirements for Notifying Data Breach19.9 Surveillance, National Security, and Individual Privacy: Striking a Balance: Privacy vs. National Security [14]19.10 Regulatory Enforcement and Accountability: Role of Data Protection Authorities19.11 Future Trends and Considerations: Evolving Legal Landscapes and Global Harmonization19.12 Conclusion: Navigating the Nexus of Data Privacy and Protection [23]References