Data refers to information or facts that can be processed by a computer or other machine. It can be in various forms such as text, numbers, images, audio, or video.

Data can be collected, stored, analyzed, and used to make decisions or uncover insights. Data can come from a variety of sources, including sensors, user input and external databases. It is considered as a valuable asset for organizations, businesses and individuals, as it can be used to improve decision making, gain a competitive advantage and drive innovation.

Data security refers to the protection of sensitive information from unauthorized access, use, disclosure, disruption, modification, or destruction. This includes measures such as encryption, firewalls, and access controls to prevent data breaches and protect against cyber threats.

Data security is a critical aspect of information technology and it is necessary to maintain the Confidentiality, Integrity, and Availability of sensitive information.