In today's data-driven world, machine learning (ML) models rely on vast amounts of information to power insights, automation, and decision-making. However, as organizations increasingly leverage these models, they must also address the critical challenge of protecting personally identifiable information (PII). Regulatory frameworks like GDPR, CCPA, and HIPAA place stringent requirements on how data is collected, processed, and shared, making privacy-preserving techniques essential for responsible AI and ML development.