Cyber Security Fundamentals

1. Introduction to Cyber Security

Discover the essentials of cybersecurity in this section, where we unravel the core concepts. Gain insights into digital threats and learn how to safeguard your online presence. Get ready for a straightforward exploration of the cyber world!

What is Cybersecurity?

Common Cyber Threats

Malware

Phishing

DoS and DDoS attacks

Challenge: Check Password Strength

2. Web Cyber Security

Dive into the dynamic realm of Web Cyber Security, where we demystify the intricate layers of the OSI (Open Systems Interconnection) model. Uncover the vulnerabilities within each OSI block, gaining a profound understanding of the threats that lurk in the digital space. Explore the vital aspects of physical and software protection, arming yourself with the knowledge needed to safeguard web environments against potential risks and ensure robust cyber resilience.

OSI Model

Web Protocols

Challenge: Check Website Web Protocol

Examples of Cyber Attacks

Password Hashing

Challenge: Creating Hash Function

Security Headers

Challenge: Extracting Security Headers From Website

3. Information Encryption

In the digital world, security is crucial to protect sensitive information. Encryption is key in this defense, ensuring data remains private and safe from unauthorized access. Now, we will explore the basics of information encryption, its methods, and its vital role in maintaining the integrity and privacy of digital communication.

What is Information Encryption?

Caesar Cipher

Challenge: Implementing Caesar Cipher

XOR Algorithm

Challenge: Implementing XOR Encryption

XOR decryption

Challenge: Extracting Security Headers From Website

Task

This task aims to create a function that extracts specific security headers from a given website. By analyzing the extracted headers, you can assess the web application's security posture. This includes understanding how the application is configured to handle security-related aspects.
Your task is to:

Get a response from the corresponding website using the .get() function of the requests library.
Extract all headers from the response using the .headers attribute of the response object.
Return information about corresponding headers from the function using variable names (csp_header and hsts_header).

Note
The objective of this assignment is to gain familiarity with the process of extracting headers. The analysis of header content falls outside the scope of this course.

Everything was clear?

Section 2. Chapter 8

Course Content

Cyber Security Fundamentals

Challenge: Extracting Security Headers From Website

Task

Get a response from the corresponding website using the .get() function of the requests library.
Extract all headers from the response using the .headers attribute of the response object.
Return information about corresponding headers from the function using variable names (csp_header and hsts_header).

Note
The objective of this assignment is to gain familiarity with the process of extracting headers. The analysis of header content falls outside the scope of this course.

Everything was clear?

Section 2. Chapter 8