Comprehensive examination of personally identifiable information (PII) management, stressing its definition, the intricate web of global data privacy regulations like GDPR, CCPA/CPRA, and PIPEDA, and crucial best practices spanning the data lifecycle. The materials highlight prevalent organisational challenges in handling PII, such as compliance complexity and vendor risk, and advocate for proactive risk mitigation through assessments and employee training, alongside robust incident response planning. Furthermore, the texts explore the role of technology in bolstering PII security and privacy, encompassing core security tools and emerging de-identification techniques and privacy-enhancing technologies, while also touching upon the ethical considerations vital in navigating this evolving landscape.