As knowledge has become one of the 21st century's most important assets, efforts to keep information secure have correspondingly become increasingly important. Information security is a set of practices intended to keep data secure from unauthorized access or alterations. The basic components of information security are confidentiality, integrity, and availability. Confidentiality is perhaps the element of the triad that most immediately comes to mind when you think of information security. Integrity means maintaining data in its correct state and preventing it from being improperly modified. Availability is the mirror image of confidentiality: while the person needs to make sure that data can't be accessed by unauthorized users. In an ideal world, data should always be kept confidential. It is often necessary to make choices about which information security principles to emphasize, and that requires assessing the data.

Gokul Pradeep

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