Data security has become increasingly critical as data usage has evolved, with techniques like data masking and tokenization playing vital roles in protecting sensitive information from unauthorized access. Data masking replaces original data with fictitious, structurally similar data, maintaining security while allowing for testing and development, despite its challenges in preserving data utility and requiring ongoing management. Tokenization substitutes sensitive data with randomly generated tokens, securely storing the original data in an encrypted token vault, reducing regulatory exposure and enhancing security, though it presents technical challenges and can limit data utility. While both methods have distinct advantages and limitations, Duality Tech offers a solution through Fully Homomorphic Encryption (FHE), enabling computation on encrypted data without decryption, thus maintaining data privacy and utility. Duality's approach, supported by partnerships with industry leaders, underscores the importance of selecting the right data privacy strategy to protect organizational reputation and facilitate efficient data use.