Unlocking Information Security II: An Internet Perspective

Continue learning how systems are hacked and defended. 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.

Course syllabus:

  1. An introduction to the typical Internet protocol stack vulnerabilities, including IP Spoofing, TCP Injections, and DDoS, and useful defenses against them like NAT Boxes and Firewalls

  2. An in-depth look at the cryptographic concepts and techniques that make up the security infrastructure of the Internet: Diffie-Hellman Key Exchange, RSA Public-Key Cryptography, Digital Signatures and MAC

  3. A survey of the world wide web's security concerns (SQL Injections, CSRF, and XSS): is the Internet ultimately vulnerable or is there a silver lining?

  4. An introduction to the world of malware: viruses, worms, Trojans and more - computer viruses and how to beat them