Data security is the practice of protecting digital information from unauthorized access, theft, and misuse. It involves implementing various measures and protocols to ensure that data is kept secure and only accessible to authorized individuals. This includes encryption, access controls, authentication, and other security measures to prevent data breaches and cyber attacks. Data security is essential for protecting sensitive information, maintaining privacy, and ensuring compliance with regulations and standards. It is a critical aspect of information technology and cybersecurity, particularly in an increasingly digital and interconnected world.