1. What is Cyber Security?
Cyber Security is the practice of protecting systems, networks, and data
from digital attacks. These attacks usually aim to access, change, or destroy
sensitive information or disrupt business operations.
Example: Protecting bank accounts, mobile apps, websites,
cloud servers, and government systems from hackers.
- Network Security
- Application Security
- Information Security
- Cloud & IoT Security
2. Why Cyber Security Jobs Are Increasing
- Rapid digital transformation
- Online banking & payments
- Cloud computing & mobile apps
- Increase in cyber crimes
Key Point:
Demand for cyber security professionals is much higher than supply.
3. Cyber Security Career Opportunities
| Role |
Description |
| SOC Analyst |
Monitors and responds to security alerts |
| Penetration Tester |
Ethically hacks systems to find vulnerabilities |
| Blue Team Analyst |
Defends systems from attacks |
| Red Team Specialist |
Simulates real-world cyber attacks |
| CISO |
Chief Information Security Officer |
4. What is Ethical Hacking?
Ethical Hacking is the authorized testing of systems to identify
vulnerabilities before malicious hackers exploit them.
- White Hat Hackers – Legal & Ethical
- Black Hat Hackers – Illegal
- Grey Hat Hackers – Between legal & illegal
5. Introduction to Linux
Linux is an open-source operating system widely used in servers,
cyber security, and embedded systems.
- Secure & stable
- Open-source
- Highly customizable
- Preferred by cyber security professionals
6. What is Kali Linux?
Kali Linux is a Debian-based Linux distribution designed for
penetration testing and ethical hacking.
Kali Linux comes with hundreds of pre-installed security tools.
- Used by penetration testers
- Used in SOC & Red Team operations
- Industry-standard hacking OS
7. Legal & Ethical Responsibility
- Hacking without permission is illegal
- Always require written authorization
- Follow cyber laws and ethics
Reminder: Ethical hackers protect systems, they do not destroy them.
8. Learning Roadmap
- Linux basics
- Networking fundamentals
- Kali Linux tools
- Web & wireless security
- SOC & incident response