From the course: Cisco Network Security: Core Security Concepts

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Security services

Security services - Cisco Tutorial

From the course: Cisco Network Security: Core Security Concepts

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Security services

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- [Instructor] Network administrators have a lot of responsibility in order to keep networks up and operational. One of the fundamental principles of providing a secure system is that of ensuring confidentiality, integrity, and availability. Also called the CIA Triad, it's a widely recognized information assurance model. We ensure confidentiality, integrity, and availability by using various techniques that include logical controls, such as access control lists and intrusion detection systems. In addition, we use various cryptographic techniques, such as hashing, digital certificates, and encryption. Confidentiality is assurance of data privacy and protection against unauthorized disclosure. Confidential information can include personally identifiable information, such as social security, credit card information, or account numbers, or business information, such as financial data, employee records, and trade secrets. An example of a violation of confidentiality would be a hacker…

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