Above all, they must safeguard every one of the millions of transactions that flow around the world every day. Simply put, Internet security means that a file has passed unhampered from the sender to the receiver. Authorization - which determines whether an already authenticated entity is entitled to perform certain actions, such as using privileges and accessing files. It ensures that users are permitted to conduct the transactions they are taking part in. Confidentiality - which assures that information will be kept secret, with access limited to appropriate individuals.
Confidentiality keeps sensitive information private.
Integrity - which protects information from being modified, destroyed or otherwise corrupted, either maliciously or accidentally. Message integrity refers to messages not being modified while in transit. File integrity refers to files not being modified while in storage. Integrity ensures that information is unchanged from the point of origin to the point of delivery. If data are altered, integrity allows the transaction or information to be voided.