From the course: Cisco Network Security: Core Security Concepts

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Cryptographic concepts

Cryptographic concepts - Cisco Tutorial

From the course: Cisco Network Security: Core Security Concepts

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Cryptographic concepts

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- [Instructor] Cyberattacks propagate the news on a daily basis. Reports surface on attackers stealing terabytes of sensitive information, personal data, and compromised emails. Stealing company information and trade secrets is a well-known challenge that businesses strive to protect against, and it can go undetected, as many times companies don't notice any abnormal network activity. On this website, we can see significant data breaches that have occurred over the years. Here we can see data records lost or stolen since 2013, and also some top breaches. I'll scroll down, we'll take a look here at how data records are lost or stolen at the following frequency. Right under this very large number, I want you to take a look at this fact. Only 4% of breaches were secure breaches, where encryption was used and the stolen data was rendered useless. That is why encryption is so important. We use cryptographic techniques to ensure confidentiality, integrity, and authentication of data whether…

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