These letters represent the CIA Triad, which stands for Confidentiality, Integrity, and Availability A company’s security infrastructure is built on these three principles, and they (should) serve as the program’s guiding principles and objectives. A company’s security infrastructure is built on these three principles, and they (should) serve as the program’s guiding principles and objectives. A breach of any one of the CIA triad’s three pillars of information security will almost always result in one or more of these principles being violated. The confidentiality, integrity, and availability of an organization’s data, applications, and critical systems are the primary considerations for security professionals when evaluating threats and vulnerabilities. A set of security measures is put in place by the security team because of the evaluation to lower the level of risk in the workplace. A thorough explanation of these principles in terms of InfoSec will be provided in the following section, followed by an examination of their practical applications. For data integrity, ATMs and banks ensure that all transactions made through them are properly accounted for by using software that monitors the user’s bank account. Because the ATM is in a public area, it is accessible even when the bank branch is closed. When it comes to verifying a user’s identity and access to specific applications, files, and data, authentication and authorization are two distinct processes. As if an airline had to decide which passengers could board, the current situation is analogous. A passenger’s identity is first verified to ensure that they are who they claim to be. To verify a passenger’s access to special services like first-class travel or the VIP lounge, a second step is required after determining the passenger’s identity. Authentication and authorization in the digital world accomplish the same objectives. Authentication is a process that ensures users are who they claim to be. To grant access to different levels of information and perform specific functions, authorization is used after this has been confirmed, according to the rules established for different users.