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In the last lecture, we talked about the definition of cybersecurity, now let's have a look at the



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different types of cybersecurity.



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Well, what is network security to force type is network security.



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We all use Internet today, right?



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Even if you are watching this online course using the Internet, Internet works as a network of four



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different protocols.



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It is a combination of small networks and everything in order to protect the network from cyber attacks.



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Network security is the picture.



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So network security, compromises of different security protocols like the IP protocol, which is very



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common, it again makes use of encryption and decryption.



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That is the cryptography, digital certificates, user account management, SSL protocol, beardless



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weapons.



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All this comes on network security.



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So the domain which looks after the security of networks, is known as network security nexus application



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security.



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Now many people, including us, use different applications.



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You use mobile applications, you use different apps, whether it is Mac or Mac OS or Android, whether



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it is Windows application or, you know, device.



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So every application also needs to be secure.



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If you're using an e-learning app, that e-learning app is going to store your data.



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So in order to protect that data, the application must be protected.



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So application security basically deals with all the factors that are required for an application to



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be completely secure and which can help to secure the data of people or the users next system security,



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which is like operating systems or firewalls or antivirus.



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Now, many of the employees will have a great amount of network and different operating systems in their



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own companies.



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In order to protect those laptops or protect those devices systems, security is used physical security,



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as we had already discussed in the last couple of lectures.



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Physical security deals with checking if a security guard is in place or other data centers properly



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protected, is access controlled mechanism properly installed?



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Are the clean desk and clean clear screen policies being implemented in the organization.



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So all this comes under the domain of physical security.



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Next is personal security.



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But in identity access, management is one of the major areas in the picture.



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So whether the employees are using the systems properly, if, if, if they are using properly, what



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is the password management policy?



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How well is the account of the users being managed?



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This comes on a deep personal security organization and security so in which business continuity management



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is one of the important factors, how organization is trying to protect its asset, whether the regular



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audits are being carried out, in what way the organization is implementing the security controls.



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All these questions are answered in organizational security, then comes to your development.



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Now, this practice has been recently gained momentum because what developers earlier used to do is



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they just used to develop a random software using the code.



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But, you know, again, the code has to go through the quality checking process, the testing process,



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again, alter the code to make it more secure.



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So this a secure code development makes the code more secure right from the beginning.



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So secure code development is therefore directly related to the application security here.



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And last is cloud security, we all know that cloud has gained momentum in the last decade.



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So cloud security is very important because most of the people have now started saving their documents,



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their data, their photos or videos, everything on cloud.



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So that cloud must also be protected.



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Right.



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That is why Google Drive, as your Amazon Web services have large teams of professionals in the cloud



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development model to specifically secure the cloud.



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Now, these are just the types which I've just told you as a basic introduction.



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But again, there are many other types of securities.



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For example, App Asset Security, Asset Management, again, financial security, monitoring, security.



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So all these securities are also in the picture.



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But for discourse, you just need to have the basic idea of these types of security.



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Greed in the next lecture will go through the history of cybersecurity, will understand how this cybersecurity



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world was formed and when exactly did it start to, you know, have the security need for organizations



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right now.



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Great.



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Keep the momentum going.



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I will see you in the next lecture.