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Unlocking Information Security II: An Internet Perspective

Tel Aviv University via edX


Information Security is everywhere: as the world becomes more and more digitized, so it becomes more and more hackable. Cyber attacks, data breaches, and even cyber warfare are all very real - so it's infinitely important to understand how hackers think and act, and how you can fight back.

In this course, which is the second part of the Unlocking Information Security program, you will turn your attention to the Internet: you'll start by learning about the inherent vulnerabilities lurking in the multiple layers of the Internet's protocol stack and then meet the first line of internet defenses. Next, you'll take an in-depth look at the modern cryptographic concepts that are at the core of internet security and discover the mathematical miracle that makes them possible.

With all this in mind, you will take a deep survey of the world wide web; understand the various technologies behind websites, how web servers and web browsers interact, how they can be attacked, and how they should be defended. Finally, you will learn about viruses, worms and trojans: what they are, how they spread, hide and attack, and the arms-race between them and the anti-virus industry.

This course was produced at Tel Aviv University by TAU Online - learning innovation center.

Taught by

Avishai Wool and Dan Gittik


4.8 rating, based on 50 Class Central reviews

Start your review of Unlocking Information Security II: An Internet Perspective

  • Together with Part 1, this course forms a brilliant and engaging introduction to Cyber Security! The course structure, animations, informal tone, humour, insightful quizzes, challenging hackxercises in Python, all form a truly work of art and science to teach anyone how to be better digital citizens and instil the desire to go further into InfoSec! I strongly recommend both to everyone!
  • Anonymous
    Fascinating and well structured, with many resources and quizzes, it is apparent that much effort was put into making this course happen.
  • Anonymous

    Anonymous is taking this course right now.

    bit trick and don't like the course at all, too mathematical and theoretical, i prefer to do another hands on than learn how the light was invented. In the world of constant evolution and changes we cannot lose many time learning theoretical content, we need to exercise more the concepts by osmosis. I not recommend this course for persons trying to find skills in computer security as this is very theoretical and tedious for some IT persons. It's more a scientific level of how the things were invented.
  • Anonymous
    It was a great journey with this course, I've learned so much than I thought I am going to do, everything from intro to the end was helpful and make me study more and gain more info as well as skills that I hope will help me continue this journey by myself and with sub materials that you provided for us to get deeper and deeper in cybersecurity.

    I thank every one who helped this course to become what its now, and I engorge anyone interested to take this course because it helped me and it will help you too.
  • Profile image for Dodoytis

    Dodoytis completed this course, spending 20 hours a week on it and found the course difficulty to be hard.

    Awesome course! Really great! Avishai and Dan are really super skilled and very nice guys and their explanations are always very clear! The second part of the course is quite hard, it requires and intermediate knowledge of computer systems and some skills...
  • Anonymous
    Very good and intuitive explanations that help you dive deep to the information security world.
    Very recommended as a first course in the information security field.
  • Anonymous
    I really enjoyed being exposed to new content and the depth of existing content.

    The presentations are clear, the explanations are simple to understand

    The exercises help, although there are no school solutions to the coding exercises.

    I learned a lot and at the same time I now internalized more than ever that we need to continue to be vigilant all the time when it comes to information security.
  • Anonymous

    Anonymous completed this course.

    As a beginner in cryptography it is tough for me to understand all at once. The course must contain auxiliary content or videos on to cover the basics of computer science (just for the wholesomeness) so that novice can appreciate it.

    Part two is more enjoyable than part 1 probably because of less cryptography which makes me think that the lessons on cryptography should be made more easier so that people can remember and retain the working.

    I am again not happy with the codeboard and somewhat unclear/incomplete instructions in the quizzes.

    I really appreciate the tons of supplementary materials. The course is well paced and enjoyable overall. I would definitely recommend it to others.
  • Anonymous
    All people related to IT, whether they are developers or those in charge of maintenance and process management, should take this course. The simplicity with which they explain complicated processes to understand makes this specialization the best that can be found on the internet.
  • Patrickdsouza

    Patrickdsouza completed this course.

    I always wanted to learn about hacking , but found courses a bit expensive and I too, did not really find the time earlier.
    During the COVID-19 pandemic , thought I would just browse through this, but was totally engrossed with the lectures & the exercise and completed both parts. The lectures, videos and notes were very well designed & delivered. Though I must mention, programming and the Hackexercise was which a bit of an issue for this course.

    Though the lock-down is still imposed in most parts of the world and in Mumbai, India too, i will look into programming in python and will try to get myself certified later.

    thank you patrick dsouza... mumbai
  • Anonymous

    Anonymous is taking this course right now.

    The course is a fast-paced comprehensive coverage of the field of cryptography. It has helped me to understand various concepts involved and has started me on the way to learning Python. I have taken this course under Audit Track and would have taken it via the verified track in case the fee was lower say around 30 to 40 USD. The combination of experience(bald head like mine) and the youthful energy of the instructors is a great combination. Alas the final touch about the endless chapters of this game between attackers and defenders somehow reminds me of the great game played between Russian and British Empires around Pamirs.
  • Anonymous
    Thank you very much for this course. I'm going to start my PhD program in Cyber Security, that's why I need to know the basic of Information security. You were able to explain in simple language the most important among immense.
  • Anonymous
    This is one of the best designed courses I have ever taken. The instructors take you from concepts all the way down to ones and zeroes in a way that really illustrates how it all works.
  • Anonymous

    Anonymous completed this course.

    Really good course. It covers the basics of information security, but shows how it fits in today's world, not just theoretically. Videos are well thought and explanations super clear.
    The course covers the most important and interesting topics of information security, and helps you connect all the dots between them. Since a lot of topics are covered, it helps you understand how the internet as we know works.
    Practical exercises help you understand what you've just learned, by coding it in Python. Really helpful.
    Thank you, I hope you do a Part III course!
  • Anonymous

    Anonymous is taking this course right now.

    The theory part of the lesson is well structured and very informative. I have an better idea of the information security arms race, and how it's done. The course has a lot of checkpoints to test our understanding, and I think it's a great way to learn effectively.

    However, I thought the hands-on coding section, or the Hackxercise is has a significant barrier to entry, a lot of the questions are too ambiguous and advanced. I think it would be better to at least show some simple example/demostration before throwing us into the water.
  • Profile image for Sarah Raafat
    Sarah Raafat
    I really enjoyed taking the course, such brilliant methods of teaching, simplifying the topic and illustrating it in an interesting way.
  • Anonymous
    Great course. I enjoyed the simplicity with which complex things are presented. Also I look forward to see more on the topic.
  • Anonymous

    Anonymous completed this course.

    The second part is as great as the first one. There are many useful information contained in the course and it gives you overview of many aspects of information security. I like the fact that information is up to date and I like the openness of the instructors in trying to objectively assess many problems and applied solutions to those problems as well. Whole of the course gives you a hint on how well educated and knowledgeable one needs to be in order to grasp full scope of this vast field. Highly recommend.
  • Anonymous
    Good course as the part 1.
    Is better to learn Python before this course.
    Need more help with the exercises.
    Thank you.
  • Anonymous
    Simple and good course. Short blocks of information that helpful to understand. Please keep good work.

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