Cyber Security Tutorial

🔐 Cyber Security Tutorial (Beginner → Advanced)

Cyber Security is the practice of protecting systems, networks, and data from digital attacks. Since you’re interested in ethical hacking and programming, this tutorial is structured step-by-step to help you build a career-ready foundation.

1️⃣ What is Cyber Security?

Cyber Security focuses on:

  • Preventing unauthorized access

  • Protecting data confidentiality

  • Ensuring system availability

  • Detecting & responding to cyber attacks

👉 Goal: CIA Triad

  • Confidentiality

  • Integrity

  • Availability

2️⃣ Types of Cyber Security

 Network Security

Protects networks from intrusions
Examples: Firewalls, IDS/IPS, VPNs

 Application Security

Secures software from vulnerabilities
Examples: Secure coding, penetration testing

 Information Security

Protects sensitive data
Examples: Encryption, access control

 Cloud Security

Protects cloud platforms like AWS & Azure

 Operational Security (OPSEC)

Policies & procedures for data handling

3️⃣ Common Cyber Attacks

Attack Type Description
Phishing Fake emails to steal credentials
Malware Virus, Trojan, Spyware
Ransomware Locks data for ransom
DDoS Flooding servers
SQL Injection Database manipulation
XSS Script injection in websites
Man-in-the-Middle Data interception

4️⃣ Ethical Hacking (White Hat Hacking)

Ethical hackers legally test systems to find vulnerabilities.

Phases of Ethical Hacking

  1. Reconnaissance

  2. Scanning

  3. Gaining Access

  4. Maintaining Access

  5. Covering Tracks

🛠 Popular tools:

  • Kali Linux

  • Nmap

  • Burp Suite

  • Metasploit

  • Wireshark

5️⃣ Cyber Security Tools (Beginner Friendly)

Tool Purpose
Nmap Network scanning
Burp Suite Web security testing
Metasploit Exploitation
Wireshark Packet analysis
John the Ripper Password cracking

6️⃣ Programming for Cyber Security

Since you plan to learn hacking, start with:

🔹 Must-Learn Languages

  • C – Memory & low-level attacks

  • Python – Automation & scripting

  • JavaScript – Web attacks (XSS)

  • SQL – Database exploitation

  • Bash – Linux automation

Example (Python – Port Scanner):

import socket
s = socket.socket()
s.settimeout(1)
if s.connect_ex(("127.0.0.1", 80)) == 0:
print("Port Open")

7️⃣ Linux & Networking (Very Important)

Linux Basics

  • Filesystem

  • Permissions

  • Processes

  • Shell scripting

Networking Concepts

  • TCP/IP

  • DNS

  • HTTP/HTTPS

  • Ports & Protocols

  • Subnetting

8️⃣ Cyber Security Certifications

Certification Level
CEH Beginner–Intermediate
Security+ Beginner
OSCP Advanced
CISSP Professional

🎯 Start with CEH or Security+

9️⃣ Career Paths in Cyber Security

  • Ethical Hacker

  • Penetration Tester

  • SOC Analyst

  • Cyber Security Analyst

  • Malware Analyst

  • Cloud Security Engineer

🔥 Roadmap (Perfect for You)

Step 1: Networking + Linux
Step 2: C & Python
Step 3: Web Security (HTML, JS, SQL)
Step 4: Ethical Hacking Tools
Step 5: Practice on labs (TryHackMe, Hack The Box)
Step 6: Certification + Internship

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