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Jini’s Information Security System Practice (Beginner)

This course carefully selects the core systems that beginners need to know in the vast field of information security. Rather than relying on rigid theory, it uses clear analogies and practical examples to help you intuitively understand how these systems work. With this single course, you can grasp the big picture of information security systems and build practical skills.

(4.9) 17 reviews

250 learners

Level Beginner

Course period 6 months

security
security
firewall
firewall
network-security
network-security
cloud-computing
cloud-computing
security training
security training
security
security
firewall
firewall
network-security
network-security
cloud-computing
cloud-computing
security training
security training

Reviews from Early Learners

4.9

5.0

isotope

100% enrolled

When it comes to security solutions, firewalls, SIEM, DLP, and XDR are probably the well-known ones, but I learned that there are actually many more security solutions out there, and I was able to easily understand what role each one plays through analogies. You pointed out what to watch out for when implementing each solution and what the latest trends are, which helped me understand the various solutions.

5.0

lifeis.together

100% enrolled

This is a lecture that gives you the confidence to move on to advanced topics. It was very helpful in understanding overall security. Thank you.

5.0

바이트탐정

100% enrolled

This lecture was very helpful in understanding information security systems.

What you will gain after the course

  • A Beginner’s Guide to Various Information Security Systems, Covering the Essentials

  • No difficult or vague terminology! Simple, intuitive explanations.

  • Explain how each information security system differs from the others and why it is needed in specific environments.

  • Reflect the latest security trends and incorporate cloud security systems.

Jini’s Information Security A to Z: Mastering Information Security Systems in One Go

  • Information Security Seems Difficult? A Beginner’s Guide Covering the Essentials

  • Enough with the difficult security terms!

  • A concise guide to the core of information security systems you can apply directly in practice after just 300 minutes of learning


You can learn things like these

  • Network security systems: Firewall, IPS (IDS), DDOS, WAF, VPN, NAC, NDR (EDR, APT)

  • Infrastructure security systems: user authentication, integrated account management, SSO (next-generation authentication), SIEM, SOAR, FDS, KMS, server access control, and vulnerability analysis systems


  • Data security systems: DLP, DRM, database security

  • Cloud security systems: CWPM, CWPP, CASB, SASE


Boost your confidence with just this information security systems course!

We help even beginners develop their own “concept and understanding of information protection systems.” 😃

Although various information security systems are used, there are not many opportunities to understand them systematically and hear them explained. Information security systems may be a familiar area for some engineers, but beginners may have limited access to hands-on environments or opportunities to work with expensive security solutions. We will explain everything from the basic concepts so that even beginners can understand.

  • We have selected only the most important systems. Focusing on the four core areas of network, infrastructure, data, and cloud security, we have carefully selected the systems most commonly used in the field. With this one course, you will gain a comprehensive perspective encompassing the entire information security system.

  • We make complex technology easy to understand. Instead of rigid theory, we use clear analogies and examples to help you intuitively understand how systems work. With Jini, even complex concepts are easy to learn.

  • It goes beyond simply conveying knowledge. We take an in-depth look at how each system differs from the others and why it is needed in specific environments. Through this, you can develop the ability to analyze and utilize systems from a security professional’s perspective, going beyond simply knowing their names.

In this course, we explain the terminology used in various information security systems in an easy-to-understand way and have literally worked to help learners gain an understanding and overall picture of “information security from A to Z”, including the factors to consider in corporate environments. You won’t need to search through various resources. We hope this course helps take your career to the next level.

Recommended for those who fit the following descriptions

Beginners entering the IT and information security fields

Those who are interested but don't know where or how to start

Current professionals encountering security systems for the first time

Those who work in IT-related roles but struggle due to a lack of security knowledge

Those who need an understanding of security operations

Those who want to deepen their overall understanding of information security systems and expand their careers toward becoming future security team leaders

After completing the course,

  • You will build foundational knowledge of information security systems and clearly understand ‘what you don’t know.’

  • You gain the confidence to use terminology confidently and exchange opinions when communicating with working professionals in the field.

  • You can build a solid foundation for preparing for information security certifications (CISA, CISSP, etc.).


  • You will overcome your vague fear of security and gain the motivation to continue learning about information security with enjoyment.


The person who created this course

  • 25 years of experience, from hands-on practitioner to chief information security officer

    • Experience across organizations of various sizes (government agencies, large enterprises, and startups) and industries (public sector, manufacturing, platforms, e-commerce, and fintech)

    • I have planned and built multiple information security systems (user networks and service networks).

    • Experienced in innovating security operations through global benchmarking (IBM MSS, Secureworks) and trend analysis of emerging technologies overseas (Fraud Detection).


  • I want to convey the know-how I have gained from solving complex problems in a way that beginners can easily understand.

    • I want to become the 'security fairy' who helps learners grow.

    • I will help you overcome the challenges you may encounter.

Notes Before Taking the Course

Learning Materials

  • Videos and PDFs needed for learning

Prerequisite Knowledge and Important Notes

  • It would be helpful if you are familiar with networks (TCP/IP), systems (OS), and various protocols.

  • Even without prerequisite knowledge, we explain everything from the terminology up at a basic level so that you can understand it.

Recommended for
these people

Who is this course right for?

  • Beginners with a vague fear of the information security field

  • Those who need an overall understanding of information security systems

  • Those who need an understanding of security operations to advance their careers (e.g., team leaders and information security officers)

Need to know before starting?

  • Understanding Basic Network Concepts and Communication Structures

  • How Web Services Work

Hello
This is geni

Career Verified

I have worked as an IT planner and information security professional for over 25 years across various organizations, including public institutions, large corporations, platform companies, and startups. Leveraging my recent experience as a Chief Information Security Officer (CISO) at fintech companies (P2P lending, STO), I plan to provide specialized content in the fields of information security and IT.

"Information security made easy for beginners!" Search for 'Information Security System Practice' on Inflearn right now and get ready to embark on a journey toward a secure digital world! by Genie

[Education]

  • Sungkyunkwan University, Department of Electronic and Electrical Engineering (Graduated)

  • Sungkyunkwan University Graduate School of Science and Technology (Information Engineering Major, Graduated)

[Key Experience]

  • Current) CEO of IVE Company (Instructor and Consultant)

  • Former) Startups: Blank Corporation, PeopleFund, Funble

  • Former) Large Corporations: POSCO, SK Planet

  • Former) Public Institutions: Korea Information Security Agency (KISA), National Information Society Agency (NIA)

[Certifications]

  • CISA

  • SCSA

  • Engineer Information Processing

[ Inquiries and Consultations ]

  • Email : kdohyung@gmail.com

  • Fields

    • Corporate: Consulting (ISMS and ISO certification, information security roadmap, etc.)

    • Corporate: Information technology projects (SI/NI, security system construction)

    • Individuals: Career coaching and resume writing guides

More

Curriculum

All

24 lectures ∙ (5hr 35min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

17 reviews

4.9

17 reviews

  • reo1140747님의 프로필 이미지
    reo1140747

    Reviews 2

    ∙

    Average Rating 5.0

    5

    33% enrolled

    You can really grasp the core points well.

    • geni
      Instructor

      Thank you for your warm review. I'm glad to hear it was helpful.

  • isotope4919님의 프로필 이미지
    isotope4919

    Reviews 1

    ∙

    Average Rating 5.0

    5

    100% enrolled

    When it comes to security solutions, firewalls, SIEM, DLP, and XDR are probably the well-known ones, but I learned that there are actually many more security solutions out there, and I was able to easily understand what role each one plays through analogies. You pointed out what to watch out for when implementing each solution and what the latest trends are, which helped me understand the various solutions.

    • geni
      Instructor

      Congratulations on completing the course. And I'm glad to hear it was helpful - it makes me feel rewarded as an instructor. I will continue to research and upload additional content that will be helpful to students. Thank you for leaving a course review.

  • lifeistogether7123님의 프로필 이미지
    lifeistogether7123

    Reviews 25

    ∙

    Average Rating 5.0

    5

    100% enrolled

    This is a lecture that gives you the confidence to move on to advanced topics. It was very helpful in understanding overall security. Thank you.

    • geni
      Instructor

      I'm very glad that it was helpful to you. I will continue to research and upload additional content that will be helpful to students. Thank you for leaving a course review.

  • 88888님의 프로필 이미지
    88888

    Reviews 7

    ∙

    Average Rating 5.0

    5

    100% enrolled

    This lecture was very helpful in understanding information security systems.

    • geni
      Instructor

      Congratulations on completing the course. And it's rewarding as an instructor to hear that it was helpful to you. I will continue to research and upload additional content that will be beneficial to students. Thank you for leaving a course review.

  • yhj4236님의 프로필 이미지
    yhj4236

    Reviews 6

    ∙

    Average Rating 4.3

    4

    63% enrolled

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